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A mass of 2 kg oscillating on a spring with constant 4 N/m passes through its equilibrium point with a velocity of 8 m/s. What is the energy of the system at this point? From your answer derive the maximum displacement, x m of the mass.
The 2-kg rod AB and the 3-kg rod BC are connected as shown to a disk that is made to rotate in a vertical plane at a constant angular velocity of 6 rad/s clockwise. For the position shown, determine the forces exerted at A and B on rod AB.
A little cat, Bella, walks in a straight line, which we shall call the x axis, with positive direction to the right. As an observant scientist, you make measurements of her motion and construct a graph of the little feline's velocity as a function..
A 0.15 kg baseball is hit by a baseball bat. Right before it is hit, the ball's speed is 30 m/s, find the magnitude of the net impulse that is applied to the ball
A 0.314 kilograms mass is attached to a spring with a force constant of 13.8 N/m. find its speed when it is 0.134 millimeter from equilibrium
An insect with many legs is scuttling across the floor. Assume that each leg pushes with the same force at exaclty the same spot. What is the insects acceleration in terms of gravity
A rod of length L and mass M is balanced in a vertical position at rest. The rod tips over and rotates to the ground with its bottom attachment to the ground never slipping. find the velocity of the tip just before it hits
A child does 350 J of work while pulling a box from the ground up to his tree house with a rope. The tree house is 6.6 m above the ground
Benjamin applies a force F over a distance x to a ropeconnected to a set of pulleys. THis raises a block of weight W toheigh h above its initial level. what is benjamin's work input
A high-frequency photon is scattered off of an electron and experiences a change of wavelength of 8.0×10-4 .At what angle should a detector be placed to detect scattered photon (relative to the direction of the incoming photon).
the siren on an ambulance is emitting a sound whose frequency is 2150 hz. the speed of sound is 343 ms.a if the
A string is wrapped many times around a pulley and is connected to a block with mb = 4.749 kg that is hanging vertically. What is the magnitude of the acceleration of the block
A hollow, conducting sphere with an outer radius of 0.254m and an inner radius of 0.199m has a uniform surface charge density of +6.18 × 106 C/m2. What is the new charge density on the outside of the sphere
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