Physics Trajectory question.
I need help finding the answers on Vy.

The speed of the stone at the bottom of the circle is 4.85 ms⁻¹.

Speed is the time fee at which an object is moving alongside a course, even as the pace is the charge and path of an object's movement. The rate of speed of the function of an object in any course.

velocity is measured because of the ratio of distance to the time in which the space became blanketed. the pace is a scalar amount because it has the most effective route and no magnitude. Speed is the time fee at which an object is moving alongside a path, while the pace is the fee and direction of an item's motion. put another way, the pace is a scalar value, whilst pace is a vector.

At the bottom position,

T - mg = Fc = mv²/r

∴ (T - mg/m)r = v²

V² = (3mg - mg ) r/ m = 2mgr/m

v = [tex]\sqrt{2gr}[/tex]

   = 4.85 ms⁻¹

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We would weigh 114 kg on Neptune if we weighed 100 kg on Earth. In comparison, we would experience much lower gravity on the Moon (16.5%) or Mars (37.6%).

Neptune is much larger than Earth. In fact, its mass is 17 times that of the Earth. Neptune's surface gravity is approximately 110% that of Earth's, so if you weigh 100 pounds on Earth, you would weigh 110 pounds on Neptune (assuming you could find someplace to, well, stand). M is subdivided into two parts, m1 and m2. The ratio of m1/M for which the gravitational attraction between the two parts becomes maximum at a given separation is. 1:1.

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Answer:

6 x 10^26 N

Explanation:

Tamara is playing a game of billiards. The white cue ball has a mass of 0.17 kg and all the other balls have a mass of 0.16 kg. The cue ball is moving at a velocity of 6 m/s when it collides with the number seven ball. If the cue ball comes to a complete stop after the collision, then the resulting velocity of the number seven ball  will be 6.375 m/s

The law of conservation of momentum states that, within some problem domain, the amount of momentum remains constant; momentum is neither created nor destroyed, but only changed through the action of forces as described by Newton's laws of motion.

using law of conservation of momentum

initial momentum of the system  = final momentum of the system

m1u1 + m2u2 = m1v1 + m2v2                          equation 1

m1 = mass of cue ball

u1 = initial velocity of cue ball

m2 = mass of number seven ball

u2 = initial velocity of number seven ball

v1 =  final velocity of cue ball

v2 =  final velocity of number seven ball

substituting in equation 1

(0.17 * 6) + ( 0.16 * 0 ) = (0.17 * 0) + ( 0.16 *  v2)

v2 = 6.375 m/s

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Answer:

Duck to avoid the ball and dodge the rhino’s attack and then try and climb the nearest tree. Hope that helps.

Explanation:

For me I’d say it’d be instinct for the answer.

Laser light passing through two small slits produces a bright fringe centered at the midpoint on a distant screen because the light waves travel the same distance from each slit to the midpoint.

Because it is composed of magnetic and electric fields, light frequently exhibits wave behavior and is thus categorized as such an electromagnetic wave. Magnetic fields are perpendicular to each other and fluctuate perpendicular to the wave propagation direction. These are referred to as transverse waves as a result.

Photons are discrete energy packets that make up light. Photons move at the speed of light, possess momentum, and lack mass. Light possesses both wave-like and particle-like properties.

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The net acceleration of the block is about -2.04m/s².

The mass of the block is 20Kg. The force applied is 50 N and the angle at which the force is applied is 25°. The coefficient of friction is 0.20.

When the block will be pulled along horizontal by applying Force fat an angle A, then there will be two components of force one along vertical fsinA and one along horizontal fcosA.

The friction will be in opposite direction,

So, we can say, the net Force F on the block is,

F = Fr - fcosA

Ma = uN -fcosA

Where,

a is the acceleration of the block,

M is the mass of the block,

N is the normal force,

f is the applied force and,

u is the coefficient of friction.

Putting all the values,

20(a) = 0.2(50)sin(25°) - 50cos(25°)

20a = 0.2(0.42)(50)-50(0.9)

20a = 4.2 - 45

20a = 40.8

a = -2.04m/s².

The net acceleration of the block is -2.04m/s².

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The pressure exerted by both on the trampoline is 25,480 N/m².

The pressure exerted by both on the trampoline is the force per unit area which is calculated as follows;

P = F/A

where;

Substitute the given parameters and solve for the pressure exerted.

P = (mg)/A

A = 0.25 m x 0.1 m

A = 0.025 m²

P = (65 x 9.8) / (0.025)

P = 25,480 N/m²

Thus, the pressure exerted at any given surface depends on the applied force and the area of the given surface.

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One hypothesis for planetary differentiation is the process through which various layers with diverse chemical and/or physical features arise.

A planet's trajectory around a star, a natural satellite's path around a planet, or an artificial satellite's course around a space object or place, such as a planet, moon, asteroid, or Lagrange point, are examples of orbits in celestial mechanics.

A spacecraft, planet, moon, star, or other object travels on a curved route called an orbit when it is dragged by the gravity of another object.

The force of gravity is what pulls objects with mass in space. An orbit is a path an object follows as it travels around a certain location in space, such as the Moon's orbit of the Earth.

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Answer:

A. Larger than that of any individual resistor

Explanation:

When resistors are put in series, the overall resistance is equal to the sum of all the resistances. So, the overall resistance will be larger than that of any individual resistor.

The magnitude of electromotive force is 232.5 volts.

We need to know about the electromotive force of induction to solve this problem. The emf induction appears when there is any change in magnetic flux. The magnitude of emf can be determined by

ε = N dΦ / dt

where N is coil turns, ε is electromotive force, dΦ is change in magnetic flux and dt is time interval.

From the question above, the parameters given are

N = 62

A/t = 0.25 m² / 0.1 s

t = 0.1 s

B = 1.5 T

By substituting the given parameters, we can calculate electromotive force

ε = N . dΦ / dt

ε = 62 . B . A / t

ε = 62 . 1.5 . 0.25 / 0.1

ε = 232.5 volts

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Answer: The correct option is D radiation pressure.

Explanation: When gravitational force tries to collapse the star in itself, the radiation pressure coming from the gamma rays creates a force in the outward direction. This outward force hence creates equilibrium and as a result, the star remains in a stable condition.

The radiation pressure is due to the gamma rays. These rays are produced through the fusion reaction, taking place in the core of the star.

Hypothetically considering, if this radiation pressure is not present the star will eventually collapse due to its own gravity. This phenomenon is termed Gravitational Collapse.

According to the given statement The mass attached to the spring is 3.99 kg.

A spring system with a block hanging from or affixed to the spring's free end is known as a spring-mass system. The spring-mass system is typically used to calculate the duration of any object in a simple harmonic motion.

F = -kx

where k is the spring constant, and

x is the displacement of the spring

The angular frequency of the spring is:

[tex]\omega=\sqrt{\frac{k}{m}}[/tex]

m is the mass of object attached to the spring

So, frequency:

f = ω/2π = [tex]\frac{1}{2 \pi} \sqrt{\frac{k}{m}}[/tex]

m = 4π²f² / k

given that f = 0.9 Hz, and

k = 9 N/m

m = (4×π²×0.9²)/8

m = 3.99 kg

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The statement is incorrect about the light year .

What is a light year ?

A Light year is the distance that light travels in a vacuum in one year.

The fastest thing we know is light, which travels through empty space at 186,000 miles or 300,000 kilometers per second. To give you an idea of ​​how fast it is, light can circle the Earth about seven times in one second. Astronomers use the speed of light to measure distance in space. A light year (ly) is the distance that light can travel in one year. In one year, light travels approximately 5,880,000,000,000 miles or 9,460,000,000,000 kilometers. So this distance is 1 light year. For example, our closest star is about 4.3 light years away. Our galaxy, the Milky Way, is about 150,000 light-years across, and the nearest large galaxy, the Andromeda Galaxy, is 2.3 million light-years away from her.

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Aluminum has the following electron configuration: 1s2, 2s2, 2p6, 3s2, and 3p1.

According to the information supplied, aluminum has an atomic number of 13. That makes it abundantly evident that the nucleus of any atom that is an isotope of aluminum will contain 13 protons. The proton number will be equal to the number of electrons surrounding the nucleus. There will be 13 electrons as a result.

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The graph does not correctly represent the story because the elevator descends to the basement at a faster speed than before.

An elevator going up shows uniform linear motion, as elevator will move in a straight line with a constant speed.

This type of motion can be shown using a straight line graph.

The downward motion of an elevator descending or moving downwards can be explained as follows;

An elevator moving downwards shows uniform linear motion, as elevator will move in a straight line with a constant speed.

From the given graph we can conclude the following;

Thus, from the greater steepness of the downward motion of the elevator than the upward motion, we can conclude that the elevator descends to the basement at a faster speed than before.

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Answers are impossible given the information provided.

P=VI, P=VI, where V is the voltage, I is the current, and P is the power, gives the power in an electric circuit.

We cannot draw any conclusions from the voltage measurement alone because power depends on both voltage and current. The information provided is therefore insufficient.

Answers are impossible given the information provided.

A lamp can be lit when charged electrons (current) are compelled through a conducting loop by the pressure of an electrical circuit's power source. In a nutshell, voltage equals pressure and is expressed in volts (V).

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Answer:

100 m

Explanation:

5  m/s   *   20 s = 100 m

The compression of the spring at the given weight is 61 cm.

Given,

The spring constant is k =2.4 × 10⁴ N/m

mass of each of the 23 persons, = 65 kg

mass of each of the 3 goats, = 15 kg

mass of each of the 5 chickens, = 3 kg

mass of the bananas, = 25 kg

The total mass of all the passengers contained in the laptop is calculated as;

total mass of the persons = 23 x 65 = 1495 kg

total mass of the goats = 3 x 15 = 45 kg

total mass of the chickens = 5 x 3 = 15 kg

the total mass of the bananas = 25 kg

The total mass = (1495 + 45 + 15 + 25)kg

1The total mass = 580 kg

The calculation for the lengthy of spring:-

F = kx

x = F/k = mg/k

x = (1495*9.8)/2.4*10^4

x = 0.610 m

x = 61 cm

Hence, the compression of the spring at the given weight is 61 cm.

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The time taken by the projectile to hit the floor is 0.55 s.

The projectile motion refers to the motion of an object or particle that is launched into a gravitational field, such as from the surface of the Earth, and travels along a curved path while only being influenced by gravity. A body is considered to be in projectile motion if it moves both vertically and horizontally (trajectory) from the point of flight to the point of landing.

This indicates that the projectile is initially thrown at a height of 1.5 meters and a speed of 80.0 meters per second.

Since the bullet is launched horizontally, the initial vertical velocity component is zero. Just figure out how long it takes something to fall 1.5 meters from a seated position. The 80 m/s is only important if you want to know where it will land on the ground. It has no bearing on the situation. We might be led to the fundamental Newtonian equation:

hf = v₀t + (a/2)t² + h₀

Here, h stands for height, v for speed, and a for acceleration. It might be difficult to resolve this for t in some circumstances, however since

v₀ = 0, this one is easy.

0 = (-9.8/2)t² + 1.5

-1.5 = -4.9t²

-1.5/-4.9 = t²

0.55 s = t

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Amy's distance and displacement if she runs 2 miles south, then turns around and runs 3 miles north is 1 mile.

This is referred to as the change in the position of an object and it is usually measured in meters by finding the difference in location between the two bodies involved.

We were told that she runs 2 miles south, then turns around and runs 3 miles north and they are at exact opposite sides on the map which means that the displacement will be:

3 miles - 2 miles

= 1 mile hence, it is the correct choice.

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The resultant distance of the vector is 12.1 m and the angle between two vectors are 48.4°. So the x-component of this vector is, Aₓ = 8.0335 m

Vector is a product that means a parameter has two types of property one is value second is direction. If a parameter has both then it called a vector quantity. Example: Velocity.

To calculate the vector we know first this is a proper vector quantity or not. According to the question, this is a vector quantity. So it has two component, one along x axis another is y axis as shown in the picture.

We have to calculate the x-component, so we are using the formula is,

Aₓ = Acosθ

Here we are given,

A = The resultant distance of the vector = 12.1 m

θ= The angle between two vectors = 48.4°.

Now We have to calculate the x-component = Aₓ

Now we put the known values in the above equation, we get

Aₓ = Acosθ

Or, Aₓ = 12.1*cos(48.4°)

Or, Aₓ = 8.0335 m

According to the calculation we get, the x-component of this vector is, Aₓ = 8.0335 m

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Answer:

Explanation:

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x2 = 4cm.

20N stretches the same spring 4cm.

The force exerted on the spring, F1 = 10N

In the spring, 1st stretch, x1 = 2cm

The force exerted on the spring, F2 = 20N

In the spring, 2ns stretch, x2 = ?

We have to find x2,

The spring constant value for the same spring must be the same. Hooke's law expresses the relationship between force and spring constant as follows:

F=kx.

F1/x1 = F2/x2

By substituting values,

10 / 2 = 20 / x2

x2 = 40/10

x2 = 4cm

As a result, the 20 N force stretches by 4 cm.

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Answer:

20 N

Explanation:

Vertical component will be   44 sin 63

HORIZONTAL component is  44 cos 63  N = 19.97 =~ 20 N

Constellation is a group of stars that appears to form a pattern or picture. Some of the constellations include Orion, Taurus, Canis Major etc.

Orion is located on the celestial equator and it can be seen throughout the world. This constellation is named after the hunter, in Greek mythology. It is one of the most obvious and recognizable constellations in the sky. Orion is most visible in the evening sky from January to April, during winter season in the Northern Hemisphere, and summer season in the Southern Hemisphere. In the tropics, the constellation moves at the zenith. Orion is bordered by Taurus to the northwest, and by other constellations in other directions.

Taurus is one of the constellations of the 12 zodiac signs. It is a large and prominent constellation in the Northern Hemisphere during winter. It is one of the oldest constellations. The International Astronomical Union gave a three-letter abbreviation for the constellation, as "Tau". During late November-early December, Taurus occupies a furthest point from the Sun and is visible the entire night. By late March, it sets at sunset and completely disappears behind the Sun's glare from May to July.

Canis Major is a constellation in the southern celestial hemisphere. It is a Latin name, which means 'greater dog' in contrast to 'Canis Minor' meaning 'lesser dog'. These both figures are commonly represented as following the constellation of Orion, the hunter, through the sky. Canis Major contains Sirius, the brightest star in the night sky, known as the "dog star". It is bright because of its proximity to the Solar System.

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Answer:

F=m × a - answer is D

Explanation:

F=15N

m=m

a=0.33

15÷0.33=45.45...

The given problem can be solved using the following free-body diagram:

The diagram is the free-body diagram for the pulley that is holding the weight. Where:

Now we add the forces in the vertical direction:

Adding like terms:

Now, since the velocity is constant this means that the acceleration is zero and therefore the sum of forces is zero:

Now we solve for "T" by adding "mg" from both sides:

Now we divide both sides by 2:

Now we substitute the values and we get:

Solving the operations:

Now we use the free body diagram for the second pulley:

Now we add the forces in the vertical direction:

The forces add up to zero because the velocity is constant and the acceleration is zero:

Solving for the force:

Therefore, the pulling force is equal to the tension we determined previously and therefore is:

Fluid viscosity is the property of the fluid that is responsible for the development of the velocity boundary layer. Non-viscous fluids do  not exhibit the property of velocity boundary layer in a pipe.

What is fluid viscosity?

Thickness of a fluid is called its viscosity. In liquids, velocity boundary layer is formed due to viscosity.

Viscosity is also termed as the flow rate of a liquid. If a liquid has a high flow rate then its viscosity is low and vice versa.

The fluid viscosity can be measured by using viscometer. The formula to measure viscosity is F = μA. u/y

Here F is force,  μ is fluid viscosity, A is the area and u/y sheer deformation rate.

On the contrary, a non-viscous fluid is one that has less thickness and can flow easily.

For example, water is a non-viscous fluid.

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When 1 kg of water and 1 kg of wood absorb the same amount of heat, the change in the temperature of the water is less than the change in temperature of the wood because the intermolecular forces in water are greater than those in wood.

Intermolecular forces are the forces of attraction that exist between the molecules of the same substance.

Intermolecular forces help to keep the molecules of a substance.

The stronger the intermolecular forces between molecules of a substance, the more heat energy it will require to separate the molecules of the substance.

The molecules of water have in addition to the covalent bond between the atoms of hydrogen, hydrogen bonds that exists between its molecules.

These intermolecular forces present in water are responsible for the high heat capacity of water.

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The average force applied for a wind-up toy car while it is speeding up is 0.926m (N), where m is the mass of the toy.

The average force applied on an object is determined by applying Newton's second law of motion.

Mathematically, the average force applied on an object is given as;

F = ma

where;

The acceleration of the wind up toy is calculated as follows;

a = v/t

where;

a = (0.741 m/s) / (0.8 s)

a = 0.926 m/s²

Substitute the value of the mass of the wind-up toy and its acceleration into the force equation to determine the average force applied to the toy.

F = m(0.926)

F = 0.926m (Newton)

Thus, the average force applied for a wind-up toy car while it is speeding up is 0.926m (N), where m is the mass of the toy.

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