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A m = 8 g bullet is fired with a velocity of vbi = 850 m/s in the horizontal direction. Assuming negligible air resistance, it hits and pass through a M = 10 kg block of wood, initially at rest on a frictionless horizontal surface. The wood is connected to a spring (as shown) which has a spring constant of k = 2000 N/m. The block moves d = 10cm before the bullet leaves the block, find
(a) the speed of the bullet after impact
(b) Is the collision was elastic or inelastic? If any energy lost due to the impact calculate that energy.
is the spring free exerted on mass 1 while it rotates greater than, less than, or equal to the force exerted by the spring on a stationary mass 1 with the spring stretched the same amount (to the radius marker).
a baseball is thrown from the roof of a building of height 20.6 with an initial velocity of magnitude 14.0 and directed
An unknown material has a normal melting/freezing point of -26.3 ° C, and the liquid phase has a specific heat capacity of 160 J/(kg · C °). What is the latent heat of fusion of the unknown material
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Spinal fluid pressure can be measured using a spinal tap in which a needle is inserted in the patient's lower back with the patient sitting upright on an examination table. The pressure due to the weight of the spinal fluid (given that its density..
How much more gravitational potential energy does a 1.8kg hammer have when it is on a shelf 1.4m high than when it is on a shelf 0.90m high
Suppose a disk is 0.50 cm thick and 4.0 cm in diameter. If this disk supports half the weight of a 90 kg person, by what fraction of its thickness does the disk compress
A cube 5.4cm on each side is made of a metal alloy. After you drill a cylindrical hole 2.5cm in diameter all the way through and perpendicular to one face, you find that the cube weighs 7.25N . What is the density of this metal? Express your answer..
A skydiver of mass m, jumps from an aircraft at an altitude of hmetres, with an initial speed of 0 m/s. She opens her parachute andlands with a final speed of v m/s. Which expression is equal to theenergy dissipated by air resistance during the jump?
What is the total distance traveled in the x-direction? What is the velocity vector at the maximum height? What is the acceleration vector at the maximum height?
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