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Physics
Page 10
Questions (149,062)
A flywheel of moment of inertia 0.32 kgm^2 is rotated steadily at 120rad/s by a 50 W electric motor. (i)find the kinetic energy
4 answers
asked by
Edwin
4,685 views
(a) Photoelectrons with a maximum kinetic energy of 7.6eV are emitted from a metal when it is illuminated by ultraviolet
3 answers
asked by
Anon
1,767 views
Abox of mass 60kg starts from the rest at height h and slides down a rough slope of length 10m, which makes an angle of 25
4 answers
asked by
Sphelele
2,877 views
A 20 kg cannonball is fired from a 2.4 x 103 kg. If the cannon recoils with a velocity of 3.5 m/s backwards, what is the
3 answers
asked by
Ula
1,567 views
According to Kepler’s second law of motion, which statement describes the area swept out by a line between a planet and the
2 answers
asked by
bakubro
116 views
On Earth, the gravitational force of a certain military drone is 6.0 kg. What is the helicopter's gravitational force if it is
1 answer
asked anonymously
231 views
Gravity and Air Resistance Quick Check
1 of 41 of 4 Items Question Which statement explains why astronauts appear to bounce when
5 answers
asked by
wasssupppp
90 views
A student kicks a 2 kg soccer ball with a force of 50 N. Calculate the acceleration of the soccer ball. Please show your work.(2
1 answer
asked anonymously
81 views
A student kicks a 2 kg soccer ball with a force of 50 N. Calculate the acceleration of the soccer ball. Please show your work.(2
1 answer
asked anonymously
113 views
The cannon on a pirate ships shoots cannon balls with a speed of 350 m/s (the muzzle velocity). The cannon can be adjusted to
7 answers
asked by
Tyger2020
2,967 views
Please help me i cant figure out what goes in the blanks and this is the last question of my gizmo... THANKS!
If the spring
5 answers
asked by
James
1,555 views
How much heat is required to raise the temperature of 250.0 g of mercury 52ºC? The specific heat of mercury is 0.14 J/(gºC).
7 answers
asked by
Meg Hat
11,527 views
Blocks A and B of weight 200N and 100N respectively, rest on a 30 inclined plane and are attached to the post which is held
4 answers
asked by
Kishore
3,254 views
Which analogy best describes amperage? (1 point)
diameter of a pipe through which water moves Olength of the pipe through which
3 answers
asked by
Hlo
197 views
What happened at point C to end with D?
a The surrounding air transferred thermal energy to A and B to equalize both in D. Air is
4 answers
asked by
A
364 views
when a ball falls vertically off a table it rebounds 75% of its height after each bounce. if it travels a total of 490 cm, how
4 answers
asked by
franc
4,643 views
the distance from the sun to earth is about 1.5x10^11 meters. suppose light travels at a speed of 3x10^8 meters per second.
7 answers
asked by
shirly
9,722 views
Three forces with magnitudes of 70 pounds, 40 pounds, and 60 pounds act on an object at angles of -30 degrees, 45 degrees, and
5 answers
asked by
Hannah
5,222 views
Select the correct answer to complete the sentence. Gravitational force is said to be universal because:
- it applies to all
13 answers
asked by
Haile
9,581 views
I have 130 liters of gas in a piston at a temperature of 250 degree Celsius. If i cool the gas until the volume decreases to 85
5 answers
asked by
mereula
3,008 views
An airplane takes off at 10:00 AM and flies a straight path at 350 km/h until 1:00 PM. Its velocity then changes to 400km/h in
4 answers
asked by
Kuhaku
944 views
How is gravitational lensing related to dark matter?
ty !
7 answers
asked by
saturnity
2,971 views
an arrow is fired directly horizontal off a cliff that is 10.0 meters tall with a velocity of 65.5 m/san arrow is fired directly
6 answers
asked by
catherine
3,226 views
Suppose that, on a day when the outside temperature is 15 degrees Celsius, we fill a balloon with pure nitrogen gas, of which
10 answers
asked by
Nick
5,286 views
There is a 100g mass sitting on the 10cm mark, and a 50g mass sitting on the 60cm mark. Force 𝐹 acts at the 30cm mark.
6 answers
asked by
Physics Student
4,056 views
A box weighing 100 newtons is pushed up an inclined plane that is 5 meters long. It takes a force of 75 newtons to push it to
7 answers
asked by
chris
6,418 views
A stone is dropped from the deck of the bridge. The sound of the splash reaches the deck 3 seconds later. If sound travels at
5 answers
asked by
Anonymous
5,466 views
Batman was driving the Batmobile at 90 mph (=132 ft/sec), when he sees a brick wall directly ahead. When the Batmobile is 400
5 answers
asked by
Meme
2,652 views
A toy rocket has a mass of 350g at launch.the force it produces is 15N and it is fired at angle of 65⁰ to the horizontal.what
7 answers
asked by
Tesnim
1,093 views
A car with a mass of 1500kg starts from rest and accelerates to a speed of 18m/s in 12s. Assume that the force of resistance
5 answers
asked by
Anonymous
4,571 views
calculate the total amount of head absorbed (in kj) when 2.00 mol of ice at -30.0C is converted to steam at 140.0 C
4 answers
asked by
colonial
1,868 views
An elastic string of length 20cm extends to 24cm. When it supports a weight of 50N, the energy stored in the string is
5 answers
asked by
ayo
2,605 views
A 1250 kg car travelling at 60.0 km/h comes to a sudden stop in 35 m. What is the coefficient of friction acting on the brakes?
5 answers
asked by
John Appleseed
2,865 views
A uniform meter rule is balanced at 30cm mark when a mass of 50g is hanging from its zero mark. calculate the weight of the
5 answers
asked by
sidney
1,855 views
An object projected horizontally from the top of a cliff with a velocity of 7 metre per second and land on the ground level a
5 answers
asked by
Favour
1,712 views
A ball of mass 500g is kicked into the air at angle of 45degree. It reaches a height of 12m. What was it's initial velocity?
7 answers
asked by
Sam
3,324 views
If the temperature of a 500.0-g sample of liquid water is raised 2.00c how much heat is absorbed by the water?The specific heat
6 answers
asked by
gabriella
5,789 views
In a diagram of electric field lines, q1 has 9 lines going into it and q2 has 27 lines going out of it. If one of
the charges is
4 answers
asked by
Anonymous
2,103 views
An equation for loudness L in decibels is given by L=10logR , where R is the relative intensity of the sound compared to the
4 answers
asked by
Nawidullah
973 views
A cylinder with a movable piston contains gas at a temperature of 27 degrees celsius, a volume of 1.50 meters cubed, and an
7 answers
asked by
Clay
4,180 views
A spiral spring extends from length 10.01m to 10.00cm when a force of 20N is applied on it. Calculate the constant force
14 answers
asked by
lola
4,620 views
A uniform cylindrical spool of mass M and radius R unwinds an essentially
massless rope under the weight of a mass m. If R = 12
4 answers
asked by
Nora
2,529 views
In its approach to an airport runway, an airplane of mass 1.24 x 10^5 kg has a velocity of 75.5 m/s [11.1 degrees below the
4 answers
asked by
Jordge
1,489 views
A uniform solid sphere rolls down an incline. (a) What must be the incline angle (deg) if the linear acceleration of the center
4 answers
asked by
Rich
3,206 views
Ronald Johnson, who is 80.0 kg, is running at 4.00 m/s when he suddenly jumps onto a stationary playground merry-go-round at a
4 answers
asked by
J
898 views
Two point charges Q1 = 10µc and Q2 = -2µc are arranged along the x-axis at x
= 0 and x =4m respectively. Find the positions
4 answers
asked by
Mike
3,359 views
A ball thrown by a boy in the street is caught 5 s later by another boy on the balcony of the house 10 m away and 3 m above the
4 answers
asked by
Kadu
1,938 views
Given DIAGRAM 1.1 where FT means Tension and W means Weight, calculate the tension on the steel cable given the following
2 answers
asked anonymously
143 views
Check all the conditions to meet Pascal's principle.
The fluid must be incompressible. The fluid must be pure and homogenous. The
2 answers
asked anonymously
152 views
Which statement best describes the charges of the particles involved in the diagram above? (1 point) Responses A neutral
1 answer
asked anonymously
62 views
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