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On a frictionless horizontal surface a 1.50 kg mass traveling at3.50 m/s collides with and sticks to a 300 kg mass that isinitially at rest. This system runs into an ideal spring forceconstant 50.0 N/cm.a) What will be the max compression of the spring and b) howmuch mechanical energy is lost during this process?
An 89 kg man lowers himself to the ground from a height of 6.2m by holding onto a rope that runs over a frictionless pulley to a73 kg sandbag
a person pulls a crate with 120 n of force against 100 n of friction a distance of 5 meters. sketch a free body diagram
A lithium atom, mass 1.17 x 10-26 kg, is vibrating with simple harmonic motion in a crystal lattice, where the force constant is 71.0 N/m. Write the equation relating the energy levels of the harmonic oscillator to the quantities given.
a proton accelerates from rest in a uniform electric field of 638 nc. at some later time its speed is 1.28 x 106a find
a lunar lander is making its descent to a moon base and descends slowly under the retro-thrust of its descent engine.
question1six vectors a to f have the magnitudes and directions. part a ranks the vector combinations on the basis of
A 5.5 ohm resistor, a 11.3 ohm resistor and a 11 ohm resistor are connected in series with a 36 V battery. If the resistors are instead connected in parallel across the battery, what is the equivalent resistance
An archer pulls her bowstring back 0.388 m by exerting a force that increases uniformly from zero to 229 N. What is the equivalent spring constant of the bow
your roommate is an aspiring novelist and asks your opinion on a matter of physics. the novels central character is
if the boy is traveling at 1m/s relative to the ground, explain how fast does the boy appear to be moving relative to the woman?
A 75-kg athlete does a single-hand handstand. If the area of the hand in contact with the floor is 125 cm2, what pressure is exerted on the floor
A 120 kg barrel which is initially at rest is rolled down an inclined plane. The friction between the barrel and the surface of the plane is negligible, calculate the barrel's velocity when it reaches the ground level
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