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A bungee cord is stretched between two poles 498 meters apart and it has a mass of 370.2 grams. If the force needed to stretch the bungee cord is 370 N, what is the velocity of a wave on this bungee cord?
A hypothetical planet's radius is 5750 km and the mass is 5.00x1024 kg. What is the escape velocity on the hypothetical planet?
a 8.4 kg mass is attached to a light cord that passes over a massless frictionless pulley. the other end of the cord is
An electron is accelerated by a uniform electric field (1000 V/m) pointing vertically upward. Utilize newton's laws to determine the electron's velocity after it moves .10 cm.
What happens to the pattern, specifically the positions on the intensity maxima, when you move the frame closer to the wall? How are D and x and related?
A 3.00 gram lead bullet is moving at 180. m/s andenters a bag of sand and stops. By what amount does the temperature of the bullet change if all its kinetic energy becomes thermal energy.
A sled, initially at height h is sliding down an incline and then it continues moving on the horizontal plane until it stops. What's the energy required to drag it back up?
A metal rod of length l and mass m is suspended in a magnetic field from two light wires that are connected to a battery with emf μ. When a vertical magnetic field B→ is turned on, the supporting wires make an angle θ with the vertical. Determine th..
A 2.0 kg mass is projected from the edge of the top of a 20mtall building with a velocity of 24m/s at some unknown angle abovethe horizontal. find the kinetic energy of the mass just before it strikes the ground
the current in an incandescent lamp is 0.5a when connected to a 120-v circuit and 0.2 a when connected to a 10-v
What is the maximum angular momentum Lmax that an electron with principal quantum number n=5 can have? Compute the magnitude of the maximum orbital angular momentum Lmax for an electron in a hydrogen atom for states with a principal quantum number of..
Suppose a stress is applied to each specimen in part (a) to reach a strain of 0.010 in./in. and then the stress is released. If the initial specimen length is 20 in. in all three cases, what is the final specimen length for each material?
A spherical weather balloon is filled with hydrogen until its radius is 3.40 meter. Its total mass including the instrument it carries is 13.0 kilogram. Determine the net force acting on balloon and its instruments if the balloon is released from t..
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