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A 5kg mass starts from rest and slides down on an inclined plane, hits a bumper at the bottom of the inclined plane and bounces back up the inclined plane and comes to rest again. During the collision with the bumper, 0.7j of energy is lost. The mass started at a height of 0.25m above the bumper and rebounded to a height of 0.210m after the collision.a. How much energy was lost in from when the mass started at rest until it rebounded to its maximum height after the collision?b. How much energy was lost due to the collision with the bumper?c. How much energy was lost due to friction between the mass and the inclined plane?
A diver springs upward from a board that is 4.50 m above the water. At the instant she contacts the water her speed is 12.5 m/s and herbody makes an angle of 84.9 ° with respect to the horizontal surface of the water. Determine her initial velocit..
An irregularly shaped object 10 long is placed with each end on a scale. how far from the left is the center of gravity
Two objects of masses m1=0.56 kg and m2=0.88 kg are placed on a horizontal frictionless surface and a compressed spring of spring constant k=280 N/m is placed between them. find the final velocity of each object
The coefficient of kinetic friction between block and ramp
An isolated charged conducting sphere of radius 12.0 cm creates an electric field of 4.90 104 N/C at a distance 22.0 cm from its center. What is its surface charge density
Starting from rest at the top of a tall, steep ramp, a sphere rolls without slipping to the ground 6.9 m below. At the bottom, its speed is 9.0 m/s. Question The sphere is either solid or hollow: which is it?
A bottle containing 2 kg of water at a temperature of 15°C is placed in a refrigerator where the temperature is kept at 4°C.
A sample of helium behaves as an ideal gas as it is heated atconstant pressure from 273 K to 343 K. what is the mass of helium present
A vehicle is speeding at 115 km/h on a straight highway when a police car moving at 145 km/h enters the highway from an onramp and starts chasing it.
A circular coil 19.0cm in diameter and containing nine loops lies flat on the ground. Determine the torque on the coil. Express your answer using three significant figures and include the appropriate units
One solenoid is centered inside another. The outer one has a length of 50.0 cm and contains 6750 coils, while the coaxial inner solenoid is 3.0 cm long and 0.120 cm in diameter, Find the emf induced in the inner solenoid
A 224Ra atom (Z=88, Atomic mass = 224.020186 amu) consists of protons (Mass = 1.00728 amu), Calculate the binding energy per nucleon
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