the answer is 0.693m.
step by step explanation:
The speed of sound, the frequency and the wavelength is related by the equation:
v= f λ
speed of sound is v=340ms⁻¹
frequency is f=490Hz
wavelength is λ= v/ f
λ=340/490
λ=0.693m
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What is matrix and what is its composition?
The matrix is the set of extracellular materials that will form a certain tissue. Through this there will be a physiological integration of the cells.
What is matrix and what is it's composition?In the matrix there will be different macromolecules, mainly collagen, enzymes, glycoproteins, among others which will give support to the cells that will be immersed in the matrix. It will also be involved in the process of cell multiplication and cell movement, since it will allow communication between the different cells to coordinate their cell functions.
The extracellular matrix is going to be composed, broadly speaking, of two components: interstitial matrix and the basal membrane. The interstitial matrix is one that will be formed by polysaccharides and fibrous proteins that gives it the characteristic to be able to cushion the compressions to which it may be subjected.
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.Two wooden blocks A and B have respective masses of 3.0 kg and 4.0 kg and are connected with an
inextensible cord. If the blocks are placed on a horizontal frictionless surface and a force of 8.0 N is
applied to A, find the tension in the connecting cord.
The tension in the connecting cord is 4.72 N.
What is tension?Tension is defined in physics as the pulling force transmitted axially by a string, rope, chain, or similar object, or by each end of a rod, truss member, or similar three-dimensional object; tension can also be defined as the action-reaction pair of forces acting at each end of said elements.
Given that:
Mass of block A (mₐ) = 3.0Kg
Mass of block B (mb) = 4.0 kg
Force (F)= 8.0N
Assume a = acceleration of the blocks.
mₐ(a) + mb(a) = 8
3a + 4a = 8
7a = 8
a = 8/7
a = 1.142 m/s²
Suppose T to be the tension in the string.
If we take a look at the forces acting on the first block, then:
F - T = (a)
T = F - (a)
T = 8- 3(1.142)
T = 8-3.428
T =4.72 N
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how much charge must pass by a point in a wire in 10 s for the current inb the wire to be 0.50 a? A.20 CB.2.0 CC.5.0 CD.0.050 C
Answer:
I = Q / t definition of electric current
Q = I * t = .5 C/s * 10 s = 5 Coulombs
(C) 5 Coulombs
What is the maximum number of cells you can select for the set objective variable in the solver parameters dialog box?.
The defined objective variable can only have one cell selected by the user. Another of the three key parameters when attempting to use the Excel solvers program is the set target variable cell.
What is a scientific variable?Anything that may vary or be altered is a variable. To put it another way, it refers to any variable that can be altered, taken into account, or determined during an experiment. Different kinds of variables are used in experiments. A quantity which value can fluctuate is said to be a variable.
How can one recognize variables?When doing an investigation, the explanatory variables is what you alter, and the response variable that's what occurs as a result of that change. This is an excellent route to conceive of variable.
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A surface has a work function 1. 70 ev and has light of wavelength 400 nm shone on it. What is the kinetic energy of the photoelectrons emitted?.
The kinetic energy of the photoelectrons emitted is calculated as 2.23 *10^-19 J .
What is meant by photoelectron?Photoelectrons are the electrons which are produced when energetic photon of radiation strikes a molecule. Photoelectron is an electron ejected from atom, molecule, or solid by an incident photon.
In terms of behavior and properties, photoelectrons are no different from other electrons.
E= h c/λ
= 6.6 *10^-34 * 3 * 10^8/400 * 10^-9
= 4.95 *10^-19 J
Work function = 1.7 eV= 1.7 * 1.6 *10^-19
= 2.72 *10^-19 J
Hence, kinetic energy of photo electrons emitted will be;
= 4.95 *10^-19 J - 2.72 *10^-19 J
kinetic energy = 2.23 *10^-19 J
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a space shuttle burns fuel at the rate of 13,000kg in each second. find the force exerted by the fuel on the shuttle if in 2s the shuttle experiences a change in momentum of 325,000 kg m/s. (
The fuel pulls the shuttle with a force acting of 1.625 105N. Noticing any change in the object's state of motion is one approach to identify a force operating on it.
What forces are at work on the human body?Recognize many categories or types of forces and how each might have a different impact on the human body. There are three different categories of force: friction and normal force, contact and non-contact force, and internal and external force.
The force on a body expressed as a change in momentum is,
where F is the force the fuel exerts on the shuttle, P is the change in momentum it experiences, and T is the entire time needed.
Considering the query we have,
ΔP=325000=3.25×10⁵kg-m/s
t=2 second
By substituting the required values in equation (1) we get;
Hence, the force exerted by the fuel on the shuttle is 1.625×10⁵N.
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The electric potential in a region of space varies as V=by/(a2+y2)V=by/(a2+y2). Determine the components of E⃗E→. Express your answers in terms of the variables aa bb yy separated by commas..
Answer: E = (0, -(b/(a^2+y^2)))
Explanation:
The electric field is given by the negative gradient of the electric potential: E = -∇V.
In this case, the electric potential V is a function of y only, so the electric field will only have a y-component. The y-component of the electric field can be calculated using the gradient:
Ey = -(∂V/∂y)
= -(b/(a^2+y^2))
The x-component of the electric field is zero because the electric potential does not depend on x.
Therefore, the electric field is given by:
E = (0, Ey)
= (0, -(b/(a^2+y^2)))
How many m/s is 60.0 km/h?
O 0.02 m/s
O 0.06 m/s
O 16.7 m/s
O 1,000 m/s
i points A spring is hanging down from the ceiling, and an object of mass m is attached to the free end. The object is pulled down, thereby stretching the spring, and then released. The object oscillates up and down, and the time T required for one complete up-and-down oscillation is given by the equation T -2were is known as the spring constant. What must be the dimension of k for this equation to be dimensionally correct? When showing your work to turn in, make sure to show that you found the unit of k using dimensional analysis rather than by looking it up. Show (in the work you turn in) that this is equivalent to the units of N/m. This answer has not been graded yet. 2 2- 2 づ丁2- .C
Question 1
T=2*pi*sqrt(m/k)
dimension of T=sec
dimension of 2*pi=nil(dimensionless)
dimension of m=kg
equation dimension
sec=sqrt(kg/k)
sec^2=kg/k
k=kg/sec^2
so dimension of k will be
MT^(-2)
dimension of N/m=kgms^(-2)/m=kgs^(-2) so it is same
Question 2
F=Gm1*m2/r^2
Dimension of F=MLT^(-2)
MLT^(-2)=G*M*M/L^2
G=ML^3T^(-2)/M^2=M^(-1)L^(3)T^(-2)
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a 40 kg child sits in a swing supported by 2 chains, each 3 m long. if the tension in each chain at thee lowest point is 300 N, find the child's speed at the lowest point
We first draw a force diagram that shows the forces acting on the child-seat system and apply Newton's second law to solve the problem. The child's path is an arc of a circle, since the top ends of the chains are fixed. Then at the lowest point the child's motion is changing in direction: He moves with centripetal acceleration even as his speed is not changing and his tangentialacceleration is zero.
Below figure shows that the only forces acting on the system of child + seat are the tensions in the two chains and the weight ofthe boy:∑F=Fnet=2T−mg=ma= mv²/r
With:
Fnet =2T−mg=2(300N)−(40.0kg)(9.80m/s² )=208N
solving for v gives,
[tex]v = \sqrt{ \frac{f \:net.r}{m} } = \sqrt{ \frac{208.3}{40} } = 3.95 \frac{m}{s} [/tex]
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The rod is supported by a ball-and-socket joint A and cables BC and BD Suppose that F = 950 N . (Figure 1) Determine the x, y, and z components of reaction at A necessary for equilibrium of the rod using scalar notation. Determine the tension in the cable BC necessary for equilibrium of the rod. Determine the tension in the cable BD necessary for equilibrium of the rod.
a) The x, y, and z components of reaction at A necessary for equilibrium of the rod are Aₓ = 950 N, Ay = 0, Az = 950 N
b) The tension in the cable BC and BD are T BC = T BD = 554.17 N.
For the force along BC, we have,
r bar BC = OC - OB = <0, -2, 3> - <6, 0,0> = -6 i - 2 j + 3 k
r^ BC = r bar BC / r BC = (-6 i - 2 j + 3 k)/7
T bar BC = T BC r^ BC = (T BC/7) × (-6 i - 2 j + 3 k)
r bar BD = OD - OB = <0, 2, 3> - <6, 0,0> = -6 i + 2 j + 3 k
r^ BD = r bar BD / r BC = (-6 i + 2 j + 3 k)/7
T bar BD = T BD r^ BD = (T Bd/7) × (-6 i + 2 j + 3 k)
Vertically downward force F bar = -F k^ = -950 k^
The condition for translational equilibrium is:
Σ F bar k^ = 0
Σ F k,x = 0
Σ F k,y = 0
Σ F k,z = 0
Then,
Aₓ - 6T BC/7 - 6T BD/7 = 0 ----(1)
A y - 2T BC/7 + 2 T BD /7 = 0 ----(2)
Az - 3 T BC/7 + 3 T BD/7 -950 = 0 ---(3)
"For rotational equilibrium we have the sum of torques about the origin O."
τ bar BC = OB bar × T bar BC
= det [ i j k, 6 0 0, -6 -2 3] = T BC/7 ( i (0) - j (18) + k(-12)) = T BC/7 ( -18 j - 12 k)
τ bar BD = OB bar × T bar BD
= det [ i j k, 6 0 0, -6 2 3] = T BD/7 ( i (0) - j (18) + k(12)) = T BD/7 ( -18 j + 12 k)
The condition for translational equilibrium about the origin is:
Note that the torque of the reaction force about the origin is zero.
Σ τ bar O = 0
τ bar BC + τ bar BD + τ bar F = 0
T BC/7 ( -18 j - 12 k) + T BD/7 ( -18 j + 12 k) + 3 F j= 0
T BC/7( -18) + T BD/7 ( -18) + 3F = 0
T BC/7( -12) + T BD/7 ( 12) = 0
18T BC/7 + 18T BD/7 = 3F ----(4)
-12 T BC/7 + 12 T BD/7 = 0 ----(5)
From the above equations, we have,
T BC = 21 F/36 = 21(950)/36 = 554.17 N
T BC = T BD = 554.17 N
So, we get Aₓ = 950 N
Ay = 0
Az = 950 N
The given question is incomplete. The complete question contains a diagram which is given in the attachment below.
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fundamental forces lab flvs physical science answers
A system of laws is held to a standard by fundamental law, also known as organic law.
What are fundamental laws?The majority of state and federal constitutions are regarded as prime instances of basic law. A system of fundamental laws lays out the guiding principles upon which all other laws must be based.
This type of law is employed in a constitution to establish the fundamental categories of rights and obligations for both citizens and the government.
For instance, the US Constitution outlines some of the most important rights of US citizens while also granting the government both powers and constraints.
Therefore, A system of laws is held to a standard by fundamental law, also known as organic law.
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which projectile spends more time in the air, the one fired from 30∘ or the one fired from 60∘?
The bullet launched from 60 travels faster vertical velocity than the one shot from 30, therefore it flies higher for a longer period of time.
How does a projectile's vertical component of velocity impact its horizontal component?
Gravity causes a vertical acceleration with a value of 9.8 m/s/s downward, whereas a projectile's horizontal velocity is constant (a number that never changes). A projectile's vertical velocity varies by 9.8 m/s each second.
Is there ever zero vertical velocity?
When a projectile reaches its maximum height, the vertical component of velocity may be zero. Immediately before to the direction of the vertical component changing and the item changing course, a projectile's vertical component is at its highest point.
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A car of mass 1,000 kg begins stationary on a road at the top of a mountain, at a height h = 3,000 m. The car then rolls freely down a winding road, travelling a total distance of 5 km, to reach the height h = 2,000 m. Assume g = 9. 8 ms-2:.
Energy which is lost by the car on descent is 980×10⁴ J
Let us calculate the energy of car at various heights.
At height 3000 m:
Mass (m) = 1000 Kg
Given, Acceleration due to gravity (g) = 9.8 m/s²
Height (h) = 3000 m
Energy (E) = To be calculated
E = mgh
E = 1000 × 9.8 × 3000
E = 29400000 J
At height 2000 m:
Mass (m) = 1000 Kg
Acceleration due to gravity (g) = 9.8 m/s²
Height (h) = 2000 m
Energy (E) =?
E = mgh
E = 1000 × 9.8 × 2000
E = 19600000 J
Finally, we shall determine the the energy lost
Energy calculated 3000 m = 29400000 J
Energy calculated 2000 m = 19600000 J
Energy lost =?
Energy lost = Energy at 3000 m – Energy at 2000 m
Energy lost = 29400000 – 19600000
Energy lost = 980×10⁴ J
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The amount of energy lost by the car when it descended from a height of 3000 m to 2000 m is 980 × 10⁵ J.
Given that,
Mass m = 1000 kg
Acceleration due to gravity g = 9.8 m/s²
Height h = 3000 m
Energy E = ?
We know that, E = m g h = 1000 × 9.8 × 3000 = 29400000 J = 294 × 10⁵ J.
At height 2000 m, the energy is,
E = m g h = 1000 × 9.8 × 2000 = 19600000 J = 196 × 10⁵ J.
The difference in energies at the height 3000 m and 2000 m is nothing but the energy lost.
So, the energy lost = 29400000 J - 19600000 J = 980 × 10⁵ J
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A.) Calculate the effective value of g, the acceleration of gravity, at 6700m , above the Earth's surface.
B.) Calculate the effective value of g , the acceleration of gravity, at 7000km , above the Earth's surface.
The effective value of g, the acceleration of gravity, at 6700m , above the Earth's surface is 9.79 m/s².
What is the acceleration of gravity?The acceleration of an object in free fall within a vacuum is termed as gravitational acceleration (and thus without experiencing drag).Solution:Given:
G=gravitational constant = 6.67x10⁻¹¹ m³/(kg.s²)
M=the Earth's mass = 5.97x10²⁴ kg
r= Earth's radius = 6371 km +6700m
r=6371000m+6700m
r=6377700m
For gravitation we use following:
F=GmM/r^2
which on further derivation gives
ma=GmM/r^2 , which results in
a=GM/r^2
Now putting the values in a=GM/r^2
a=6.67x10⁻¹¹ m³/(kg.s²)*5.97x10²⁴ kg/6377700^2
a=9.79 m/s²
Hence, The effective value of g, the acceleration of gravity, at 6700m , above the Earth's surface is 9.79 m/s².
then at 7000km i.e. 7000000m
All will be same except r= 6371000m+7000000m
r=13371000m and
r^2 =1.78*10^14.
putting values
a=6.67x10⁻¹¹ m³/(kg.s²)*5.97x10²⁴ kg/1.78*10^14.
a=2.23*10^28 m/s.
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Each of the different colors that make up white light has a different?
Answer:
wavelength
Explanation:
red has the longest wavelength, violet has the shortest (ROYGBIV)
3. Three concurrent forces are applied to keep 160 N weight in equilibrium. Two of the forces are given F₁=(-2î-24ĵ+11k)N and F2=(13î+15j+85k)N. Assuming that the force of gravity is along the z-axis, determine the components of the third force.
The 3rd force is (-11 I + 9 j + 64 k) Newton, according to the information given in the question.
Describe a force.A pull or push from which an object experiences as a result of interacting with another item is known as a force. whenever two items engage with one another. Force is used to describe a body's tendency to change or alter its state as a result of an external cause. When force is applied, the object can also alter its size, shape, and direction. kicking a ball, pushing and pulling on the door, or kneading dough are a few examples.
Because the weight is in equilibrium, hence sum of total forces must be equal to 160 N.
Therefore,
F1 + F2 + F3 = 160
(-2î-24ĵ+11k) + (13î+15j+85k) + F3 = 160 k
(Since force of gravity is along the z-axis)
11 i - 9 j + 96 k + F3 = 160 k
F3 = (-11 i + 9 j + 64 k) N.
Components of third force are -
11 Newton along X-axis
9 Newton along Y-axis
64 Newton along Z-axis
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A person rides a Ferris wheel that turns with constant angular velocity. Her weight is 546.0 N. At the top of the ride her apparent weight is 1.500 N different from her true weight. If the angular speed of the Ferris wheel is 0.0250 rad/s, what is its radius?
The radius of the Ferris wheel is 0.5 m if its angular speed is 0.0250 rad/s.
To find the radius of the Ferris wheel, we can use the formula for the centripetal force, which is:
F = m * (ω^2) * rWhere:
F is the apparent weight differencem is the true weightω is the angular velocityr is the radiusWe can rearrange the equation to solve for r:
r = F / (m * (ω^2))Plugging in the given values:
r = (1.5 N) / (546 N * (0.0250 rad/s)^2)Solving for r:
r = 0.5 mSo the radius of the Ferris wheel is 0.5 meters.
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Introduction to the Physical Sciences: Mastery Test
Drag each tile to the correct box.
A student writes down several steps of the scientific method. Put the steps in the best order.
Analyze the experimental data.
Make a hypothesis.
Conduct an experiment.
Communicate the results.
The Correct Sequence is:
Make a hypothesis.Conduct an experiment.Analyze the experimental data.Communicate the results.What is the Scientific method?
The scientific method is the approach that scientists use to understand, answer, and explain natural phenomena and events.
The method follows a series of steps that begin with observation, asking questions, conducting background research, and leading to the formation of hypotheses that deny the possibility of explaining the phenomenon to its limits.
Explanation:
Hypotheses are then tested by experiments, and results can be provided to prove or disprove the hypothesis. Results are analyzed and conclusions are drawn based on them. After analyzing the results needs to published and communicated.
Hence, the following is the correct sequence.
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A student writes down several steps of the scientific method , the correct order of steps are discussed below
The proper order is:
1.Make a hypothesis.
2.Conduct an experiment.
3.Analyze the experimental data.
4.Communicate the results.
Experiments are used to test hypotheses, and the results can either support or refute the hypothesis. On the basis of the results, conclusions are drawn. The results must be published and communicated after they have been analyzed.
Therefore, the order that follows is correct.
How does the scientific method work?
Scientists use the scientific method to comprehend, respond to, and explain natural phenomena and events. The method involves observing the phenomenon, asking questions, conducting background research, and coming up with hypotheses that deny the possibility of fully explaining it.
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A 14,700 N car is traveling at 25 m/s. The brakes are applied suddenly, and the car slides to a stop. The average braking force between the tires and the road is 7100 N. How far will the car slide once the brakes are applied? Using energy analysis?
To find the distance that the car slides once the brakes are applied, we can use energy analysis. We know that the initial kinetic energy of the car is given by:
E_i = 0.5 * m * v^2 = 0.5 * 14700 N * 25 m/s^2 = 148750 J
And the final kinetic energy of the car is zero, since it comes to a stop. The change in kinetic energy is therefore:
ΔE = E_f - E_i = 0 - 148750 J = -148750 J
The work done by the brakes is equal to the change in kinetic energy, so we can write:
W = ΔE = -148750 J
The braking force is given as 7100 N, so the distance that the car slides is given by:
d = W/F = -148750 J / 7100 N = -20.9 m
Therefore, the car will slide a distance of approximately 20.9 meters once the brakes are applied.
Which of these was NOT seen telescopically by Galileo?
O A. sunspots
O B. Four moons around Jupiter
O C. craters and mare on the Moon
O D. Venus' phase cycle
O E. stellar paralla
Nearby stars appear to move in comparison to background stars that are farther away due to Earth's rotation around the Sun. This mobility, which is not "actual" moving, is known as stellar parallax.
Why is parallax so important?Parallax is one of the most important methods of distance measurement used by astronomy. Although it is quite accurate, it can only be used for stars that are close by. The method compares the background motion of further away objects to the moving object of nearby objects.
What is revealed by stellar parallax?Stellar parallax, which may be used to determine an object's distance using trigonometry, is the apparent shift in location of any nearby star (or other object) when contrasted to other objects at a distance.
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A rower intends to row his raft at its top speed of 1.5 m/s from the south bank of a river to a point
directly opposite on the north bank. He fails to recognise the river current which pulls a Jog west at
0.50 m/s, What is the raft's resultant velocity with respect to the bank?
The resultant velocity of the raft is calculated using the triangle law. The resultant velocity is 0.75 m/s.
What is velocity ?The velocity of a moving object is the measure of the distance it covered per unit time. It is a vector quantity and have both direction and magnitude. If an object is moving through another moving object such as a river, the net velocity of the object will be different from its original velocity.
Given that, the raft is moving through a river to the north with a speed of 1.5 m/s and the river current has the velocity of 0.50 m/s. The river current is moving in horizontal direction and the resultant velocity can be determined using the Pythagorean theorem.
Thus, the resultant velocity is the hypotenuse of the triangle.
then resultant velocity = √(1.5² + 0.5² ) = 0.75 m/s
Therefore, the resultant velocity of the raft is 0.75 m/s
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________ is the maximum load of solid particles a stream can transport in a unit of time.
The true response is A. The greatest amount of solid particles that a stream can transport in a given amount of time is known as capacity.
What Sediment Type Has the Largest Amount?The categorization of the sediment is based on their size. From smallest to largest in size, they may be divided into the following categories: clay, silt, sand, pebbles, cobble, and boulder.
Which Sediment Sizes Will A Stream Move The Easiest?Small sand grains between 0.2 mm and 0.5 mm are the particles in a stream that dissolve the most quickly. Any object that is smaller or larger needs more water moving past it in order to be degraded and entrained inside the flow.
Competence is a measure of a person's skill, whereas capacity is the greatest load of solid particles a river can move in a unit of time. The capability of a stream to move particles as per size rather than amount.
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The Correct Question is:
________ is the maximum load of solid particles a stream can transport in a unit of time.
A) Capacity
B) Competence
C) Silt
D) Bed Load
If you and two other friends concurrently pull on
an object with the same force, each spread out
evenly, like in the diagram, describe what would happen!
If two friends simultaneously pull on an object with the same force, each spreading out evenly, then the object will move in a particular straight direction where the force is pulling.
What is the significance of the force?force is applied to a substance, and as a result, the displacement of an object is seen, which affects the directions and the movement of the substance, such as when a high-intensity force changes the velocity more while a lower-intensity force leads to a low velocity.
Hence, if two friends simultaneously pull on an object with the same force, each spreading out evenly, then the object will move in a particular direction where the force is pulling.
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A 0.105 kg hockey puck is traveling at 12 m/s when it is struck by a stick. As a result, the puck travels at 15m/s in the opposite direction. If the contact between the stick and puck lasted 0.05 s, what was the force?
The force exerted on the hockey by the stick is -56.7 N.
What is force?Force is the product of mass and acceleration.
To calculate the force on the hockey, we use the formula below.
Formula:
F = m(v-u)/t........................ Equation 1Where:
F = Forcem = Mass of the hockeyv = Final velocityu = Initial velocityt = TimeFrom the question,
Given:
m = 0.105 kgv = -15 m/s (opposite direction)u = 12 m/st = 0.05 sSubstitute these values into equation 1
F = 0.105(-15-12)/0.05F = -56.7 NHence, the force on the hockey is -56.7 N.
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Why was the invention of the chronometer important?
The invention of the chronometer was important because it allowed for more accurate navigation at sea.
Prior to the invention of the chronometer, navigators had to use the sun, stars, and other celestial bodies as a means of determining their location.
This was often inaccurate and could put ships in danger of getting lost at sea. The invention of the chronometer allowed for a more accurate and reliable way of keeping track of time and location, which made for safer and more efficient navigation.
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a copper wire is 20 m long on a winter day when the temperature is −12∘c. By how much does its length increase on a 26 ?C summer day?Express your answer using two significant figures.
The length of the copper wire at -12°C or 261 K is 20 m. The length will increases to 23 m at 26 °C or 299 K.
What is thermal expansion ?As the temperature increases, the kinetic energy of particles in a solid increases to weaken the intermolecular attractive force between them. As the force weakens, the particle - particle gas increases, results in expansion of the material.
The length of a solid material increases relatively in summer due to thermal expansion. The length of copper wire at winter is given 20 m.
temperature = - 12 °C or 261 K (-12 +273)
temperature at summer = 26 °C or 299 K
Length of the wire at 299 K = (299 × 20 m) / 261 = 23 m
Therefore, the length of copper wire in summer will be about 23 m.
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what is the displacement between the interval 0-4s
Answer:
120 meters
Explanation:
To find the displacement in the velocity-time graph, we can do that by finding the area under the graph. Since from t = 0 to 4, the points form a right triangle, we can find the area by using triangle area formula:
[tex] \displaystyle{A = \dfrac{1}{2} \times b \times h}[/tex]
We know that base is 4 and height is 60. Therefore:
[tex] \displaystyle{A = \dfrac{1}{2} \times 4\times 60} \\ \\ \displaystyle{A = 2\times 60} \\ \\ \displaystyle{A = 120}[/tex]
Since area is 120 under the graph then that means the displacement is 120 meters.
A 1.6-m-tall woman stands 2.0 m in front of a convex funhouse mirror with a focal length of 2/3 m . Use ray tracing to determine the location of her image. Use ray tracing to determine height of her image.
The location of the height of her image is calculated to be 1.19 m behind the mirror.
We must establish a frame of reference in order to characterize the situation. To determine an object's position, we frequently utilize the Earth as a point of reference.
The important thing to remember in this situation is that we should use a reference that, in most cases, is not stationary and is instead moving.
Given that,
Object distance u = -2 m
Focal length f = - 0.75 m
By mirror equation,
1/v + 1/u = 1/f
1/v = -1/0.75 + 1/2
On solving we get,
1/v = -1.34 + 0.5
v = - 1.19 m
Thus, the location of her image is 1.19 m behind the mirror.
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A ride at an amusement park moves the riders in a circle at a rate of 6.0 m/s. if the radius of the ride is 9.0 meters, what is the acceleration of the ride? 54 m/s 2 4.0 m/s 2 0.67 m/s 2 0.075 m/s 2
A ride at an amusement park moves the riders in a circle at a rate of 6.0 m/s, then the acceleration of the ride is calculated as 4.0 m/s².
What is centripetal acceleration?The property of the motion of an object traversing circular path is known as centripetal acceleration. An object that is moving in circle and also has an acceleration vector pointed towards center of that circle is called Centripetal acceleration and the unit of centripetal acceleration is m/s².
As given velocity, v= 6m/s
radius, r= 9m
As we know that, centripetal acceleration = v²/r
= 6²/9
Hence, centripetal acceleration = 4 m/s²
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