First of all, weight is a force typically measured in Newtons. So right away, you can eliminate 35 kg and 343 kg from the given choices.
The object's weight F on Venus as given by the universal law of gravitation is
F = G (35 kg) (4.87 x 10²⁴ kg) / (6.05 x 10⁶ m)²
where G = 6.67 x 10⁻¹¹ N•m²/kg² is the gravitational constant. You would find the weight of the object to be
F ≈ 310.8 N
so the closest answer is 311 N.
What form of braking is used to bring a vehicle to a smooth stop by applying smooth,steady pressure to the brake
trail braking
controlled braking
threshold braking
coasting
Answer:
Controlled braking
Explanation:
CONTROLLED BRAKING occur in a situation where a person or an individual driving a vehicle releases the brake and slowly apply smooth as well as firmly pressure on the brake without the wheels been locked which is why CONTROLLED BRAKING are often used for emergency stops by drivers reason been that it helps to reduce speed when driving as fast as possible while the driver maintain the steering control of the vehicle.
Therefore the form of braking which is used to bring a vehicle to a smooth stop by applying smooth,steady pressure to the brake is called CONTROLLED BRAKING.
2. What do pitch and loudness have in common?
Both are measured in decibels, or dB.
Both depend on a wave's frequency.
Both are subject to a person's interpretation.
Answer:
Both are subject to a persons interpretation
Explanation:
We hear people describe this when somebody is making an irresistible sound. usually people say the baby has a pitch scream.
How many turns should a solenoid of cross-sectional area 3.0×10−2 m2 and length 0.24 m have if its inductance is to be 36 mH ?
Answer:
The number of turns of the solenoid is 478.7 turns.
Explanation:
Given;
area of the solenoid, A = 3.0 x 10⁻² m²
length of the solenoid, l = 0.24 m
inductance of the solenoid, L = 36 mH = 0.036 H
The number of turns of the solenoid is calculated as follows;
[tex]L = \frac{\mu N^2 A}{l} \\\\N^2 = \frac{Ll}{\mu A} \\\\N = \sqrt{\frac{Ll}{\mu A}} \\\\N = \sqrt{\frac{0.036 \ \times \ 0.24}{4\pi \times 10^{-7} \ \times \ 3.0 \times 10^{-2} }}\\\\N = 478.7 \ turns[/tex]
Therefore, the number of turns of the solenoid is 478.7 turns.
If the mass of a rose quartz is 4g volume is 2g what is the specific gravity? How do you find it?
Answer:
[tex]Specific\ Gravity = 2[/tex]
Explanation:
The volume can't be 2g but 2mL
So, the given parameters are:
[tex]Mass = 4g[/tex]
[tex]Volume = 2mL[/tex]
Required
Determine the specific gravity
First, we calculate the gravity of the quartz
[tex]Density= \frac{Mass}{Volume}[/tex]
[tex]Density = \frac{4g}{2mL}[/tex]
[tex]Density = 2g/mL[/tex]
The specific gravity is then calculated using:
[tex]Specific\ Gravity = \frac{Density\ of\ object}{Density\ of\ Water}[/tex]
[tex]Density\ of\ water = 1g/mL[/tex]
So, the expression becomes:
[tex]Specific\ Gravity = \frac{2g/mL}{1g/mL}[/tex]
[tex]Specific\ Gravity = 2[/tex]
A father wanted to explain how the moon shines to his 5-year old child by comparing it to an object that the child uses. Which statement below is the best explanation? *
-The moon is like a flashlight. It produces its own light.
-The moon is like a mirror. It reflects light produced by the Sun.
-The moon is like a glow-in-the-dark sticker. It absorbs light during the day and glows at night.
-The moon is like a burner on a stove. When it reaches a certain temperature, it glows.
Answer:
The moon is like a mirror. It reflects light produced by the Sun
Explanation:
Answer:
B. The moon is like a mirror. It reflects light produced by the Sun.
Explanation:
which one is it, please help me, I will give brailiest
At 2:00 p.m. a car's speedometer reads 30 mi/h. At 2:30 p.m. it reads 50 mi/h. Show that at some time between 2:00 and 2:30 the acceleration is exactly 40 mi/h2.
Answer:
The acceleration is exactly 40 mi/h² as shown
Explanation:
Given;
initial velocity of the car, u = 30 mi/h
final velocity of the car, v = 50 mi/h
change in velocity, ΔV = v - u
ΔV = 50 mi/h - 30 mi/h = 20 mi/h
initial time, t₁ = 2:00 PM
final time, t₂ = 2:30 PM
Change in time, Δt = t₂ - t₁
Δt = 2: 30 - 2:00 = 30 mins = 0.5 hour
Acceleration is given as change in velocity per change in time;
a = ΔV / Δt
[tex]a = \frac{20 \ mi/h}{0.5 \ h}\\\\a = 40 \ mi/h^2 \ (shown)\\\\[/tex]
Therefore, the acceleration is exactly 40 mi/h² as shown.
A 10-foot ladder is leaning straight up against a wall when a person begins pulling the base of the ladder away from the wall at the rate of 1 foot per second. Calculate the true distance between the top of the ladder and the ground when the base of the ladder is 9 feet from the wall.
Answer:
[tex]y = 4.36[/tex]
Explanation:
Let the height of the ladder be L
[tex]L = 10[/tex]
Also:
Let [tex]x = distance\ from\ the\ base\ of\ the\ ladder[/tex]Let [tex]y = height\ of\ the\ base\ of\ the\ ladder[/tex]When the ladder leans against the wall, it forms a triangle and the length of the ladder forms the hypotenuse.
So, we have:
[tex]L^2 = x^2 + y^2[/tex] --- Pythagoras Theorem
When the base is 9ft from the wall, this means that:
[tex]x = 9[/tex]
Substitute 9 for x and 10 for L in [tex]L^2 = x^2 + y^2[/tex]
[tex]10^2 = 9^2 + y^2[/tex]
[tex]100 = 81 + y^2[/tex]
Make [tex]y^2[/tex] the subject
[tex]y^2 = 100 - 81[/tex]
[tex]y^2 = 19[/tex]
Make y the subject
[tex]y = \sqrt{19[/tex]
[tex]y = 4.36[/tex]
Hence, the true distance at that point is approximately 4.36ft
The true statement about the true distance between the top of the ladder and the ground when the base is 9 feets from the wall is - 9/√19
Let :
x = distance from base of ladder y = Length of ladderLadder forms a right angle triangle as it leans against the wall :
Hence, we have :
Opposite² + Adjacent² = hypotenus²x² + y² = 100Taking the implicit derivative of both sides:
2xdx/dt + 2ydy/dt = 0
xdx/dt + ydy/dt = 0
ydy/dt = - xdx/dt
dy/dt = (-xdx/dt) / y
When the ladder is 9 ft from the wall;
x = 981 + y² = 100
y² = 100 - 81 = 19
y = √19
Substituting into the equation :
dy/dt = -9(1)/√19
Hence, dy/dt = - 9/√19
Learn more : https://brainly.com/question/13511183
Describe any major landmarks (buildings, bridges, historical sites, etc.) that were destroyed during the valdivia earthquake.
Answer:
Homes, Workplaces, Statues, Meuseums
Explanation:
if you did look into it you would know after the earthquake there was a tsunami which flooded alot of places, this made many homeless, jobless, and many lossing vaklueable things
A 1,100 kg car comes uniformly to a stop. If the vehicle is accelerating at -1.2 m/s2 , which force is closest to the net force acting on the vehicle?
Answer choices:
A. -9600N
B. -1300N
C. -900N
D. -94N
Answer:
Explanation:
D
The net force acting on the car is -1320 N. Option B is the closest force that is acting on the car.
How do you calculate the force?Given that the mass m of the car is 1100 kg and its acceleration a is -1.2 m/s2. The force on the car is calculated by Newton's second law of motion.
Newton's second law states that the force on an object is equal to the products of its mass and acceleration.
[tex]F = ma[/tex]
Substituting the values, we get the force on the car.
[tex]F = 1100 \times -1.2[/tex]
[tex]F = -1320 \;\rm N[/tex]
Hence we can conclude that the net force acting on the car is -1320 N. Option B is the closest force that is acting on the car.
To know more about Newton's second law of motion, follow the link given below.
https://brainly.com/question/8898885.
The weight of an object is 118N. If the object is moved to a
distance that is twice its original distance from the planet's
center, what will the new weight be?
Answer:
half the weight depending on planet gravitational force. weight wouldn't change though if gravitational force is strong
Explanation:
I need help
Pls for me
What does it mean to say that an object is opaque?
A. It reflects all visible light.
B. It absorbs all visible light.
C. Light will not transmit through it.
O D. Light will transmit through it.
Answer:another answer is ”a light will not transmit thro it”
Explanation:
Ape.x answers
What's the difference between uk and us
Answer:
one has a k and one has a s
Explanation:
Answer:
the uk refers to the indians and the us refers to the state, (i think srry if its wrong)
9. Which of these is equal to 7nm?
O 0.7m
O
0.007m
O 0.000007m
O 0.000000007m
Answer:
o.o7m bb
Explanation:
A uniform electric field exists in which of the following regions?
I. Around an infinite line of uniform linear charge density.
II. On either side of an infinite thin sheet of uniform charge density.
III. Between the spherical shells of a charged spherical capacitor.
a. I only
b. Il only
c. Ill only
d. II and III only
e. I, II and III
Answer:
electric field formed we see that the field is uniform only for a sheet of uniform charge, so the correct answer is b
Explanation:
Let's analyze the shape of the electro field in each given configuration
i) a charge line.
Using Gauss's law the field varies inversely with the distance
E = 2K λ / r
ii) an infinite leaf. the electric field is
E = σ / 2ε₀
iii) two spherical shells
in this case the charge can be considered centered in the center of each shell and the electric field is
E = k q / r²
for each shel linterior
The outer shell does not create an electric field in the space between them
When examining each electric field formed we see that the field is uniform only for a sheet of uniform charge, so the correct answer is b
What is the relationship between wavelength and frequency? *
As frequency increases, wavelength increases
As frequency increases, wavelength decreases
As frequency decreases, wavelength remains the same
Frequency and wavelength have no relationship
Answer:
As frequency increases, wavelength decreases
Explanation:
Both quantities are inversely proportional
Two lasers are shining on a double slit, with slit separation d. Laser 1 has a wavelength of d/20, whereas laser 2 has a wavelength of d/15. The lasers produce separate interference patterns on a screen a distance 5.20m away from the slits.
1. Which laser has its first maximum closer to the central maximum?
2. What is the distance Δymax--max between the first maxima (on the same side of the central maximum) of the two patterns?
3. What is the distance Δymax-min between the second maximum of laser 1 and the third minimum of laser 2, on the same side of the central maximum?
Answer:
1) aser 1 has the maximum closest to the center
2) Δy = 0.0866 m , 3) Δy = 0.693 m
Explanation:
The interference phenomenon is described by the expression
d sin θ = m λ for constructive interference
d sin θ = (m + ½) λ for destructive interference
We can use trigonometry to find the angle
tan θ = y / L
in trigonometry experiments the angles are small
tam θ = [tex]\frac{sin \theta}{cos \theta} = sin \theta[/tex]
sin θ = y / L
we substitute
d y / L = m λ (1)
1) Let's find the first maximum that corresponds to m = 1 for each laser
laser 1 λ = d / 20
d y₁ / L = 1 d / 20
y₁ = L / 20
y₁ = 5.20 / 20
y₁ = 0.26 m
Laser 2 λ= d / 15
d y₂ / L = 1 d / 15
y₂ = d / 15
y₂ = 5.20 / 15
y₂ = 0.346 m
Therefore laser 1 has the maximum closest to the center
2) the difference between these maxima
Δy = y₂ - y₁
Δy = 0.3466 - 0.26
Δy = 0.0866 m
3) we look for the second maximum m = 2 of laser 1, we substitute in equation 1
y₃ = 2 5.20 / 20
y₃ = 0.52 m
now let's find the third minimum m = 3 of laser 2
d y₄ / L = (m + ½) λ
d y₄ / 5.20 = (3 + ½) d / 15
y₄ = 3.5 5.20 / 15
y₄ = 1.213 m
Δy = y₄ -y₃
Δy = 1.213 - 0.52
Δy = 0.693 m
Fix this problem please.
Answer:
In my knowledge....
Option E.........
Explanation:
I have no doubts it is option E 350N
1 point
7. A student had an attendance at school of 80% in week A. In week B their
attendance increased to 95%. Calculate the percentage increase in
attendance.
16
5%
19%
h
15%
Answer:
i need a girlfreind
Explanation:
If magnet A can pick up 3 steel paperclips and magnet B can pick up 5 paperclips, which one is stronger
Answer:4
Explanation:
The clips are not affected by magnet strength
1) An object of mass (m=2.0 kg) is given an acceleration given by a=3.0 i +4.0j.
The magnitude of the applied force in (N) is:
By Newton's second law, the net force on the object is
F = m a
F = (2.0 kg) ((3.0 i + 4.0 j ) m/s²)
F = (6.0 i + 8.0 j ) N
which has a magnitude of
F = √((6.0 N)² + (8.0 N)²) = √(100 N²) = 10 N
HELP ASAP 100 POINTS NEED ANSWERED ASAP
Answer:
yes
Explanation:
Answer:
Hmm looks tricky
Explanation:
A student with arms outstretched stands on a platform that is rotating with a constant angular speed. The student then pulls his arms inward. This will result in
Answer:
an increase in the angular speed due to the conservation of angular momentum principle.
Explanation:
From this question, this student has his arms outstretched and he is standing on a platform which is rotating with a constant angular speed.
When his arms are stretched, his moment of inertia I is increased.
Now as This student pulls his arms inwards, His moment of inertia I is going to decrease
Therefore, through the use of the conservation of angular momentum,
there would be an increase in angular speed.
A small sphere of mass 9.50 g is released from rest in a large vessel filled with oil, where it experiences a resistive force proportional to its speed. The sphere reaches a terminal speed of 9.00 cm/s. Determine the time constant, and the time at which the sphere reaches 85.0% of its terminal speed.
Hey v sauce here massive ti ts here there is many black wholes in space there is one in my A&& as well
If the top of the oil is 25.0 cm above the bottom of the tube, what is the height of the top of the water above the bottom of the tube?
This question is incomplete, the complete question is;
In the Manometer tube in the figure below, the oil in the right-hand arm is olive oil of density 916 kg/m³
If the top of the oil is 25.0 cm above the bottom of the tube, what is the height of the top of the water above the bottom of the tube?
Answer:
the height of the top of the water above the bottom of the tube is 22.9 cm
Explanation:
from the diagram
P_oil = 916 kg/m³
h_oil = 25 cm = 0.25 m
p_water = 1000 kg/m³
Now, in equilibrium;
pressure at p due to water = pressure at p due to oil
⇒h_water × p_water × g = h_oil × p_oil × g
h_water = h_oil × p_oil × g / p_water × g
h_water = (0.25 × 916) / 1000
h_water = 0.229 m ≈ 22.9 cm
Therefore the height of the top of the water above the bottom of the tube is 22.9 cm
Which type of change is freezing water an example of?
Answer:
phase transitions
Explanation:
What kind of energy do plants convert light energy from the sun
Answer: chemical energy
Explanation:
Suppose astronomers discover a type-M star with a very large luminosity. What type of star is it likely to be
Answer: A red supergiant
Explanation:
Red supergiants are the stars that have a supergiant luminosity which has a class of either K or M spectral type. In terms of volume, they are regarded as the largest stars on Earth even though they are not the most luminous.
Red supergiants are formed when a star collapses after the hydrogen fuel that the star has in its core runs out and
then fusion begins when the outer shells of hydrogen gets hot.
