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A chain consisting of five links, each of mass 0.120 kg, is lifted vertically with a constant acceleration of a = 4.3 m/s2. Consider the force link 3 exerts on link 2. Find the magnitude of this force. What is the magnitude of the force F that must be exerted on the top link to achieve this acceleration?
A bird watcher meanders through the woods, walking 1.78 km due east, 1.03 km due south, obtain the magnitudes of the bird watchers displacement
A pitcher claims he can throw a 0.160-kg baseball with as much momentum as a 2.50-g bullet moving with a speed of 1.50 103 m/s
A block of mass m is accelerated across a rough surface by a (massless) rope passing over an ideal pulley and connected to a second mass m2. Derive an expression for the acceleration of the sliding block
Boy is stands on a scale in an elevator that is accelerating upward. Scale reads 723.8 N. Find magnitude of the acceleration of the elevator
Compressed air in a car lift applies a force to a piston with radius 5.00 cm. What pressure produces the lift
The average power used by a stereo speaker is 56 W. Assuming that the speaker can be treated as a 7.7- resistance, find the peak value of the ac voltage applied to the speaker
A 181.99 kg car that stopped at a traffic light is struck from the rear by a 419.72 kg car. find the velocity of the entangled cars after the collision
A simple pendulum has mass 1.28 kg and length 0.600 m. What is the period of the pendulum near the surface of Earth
Now, a second resistor R2 of 3.2x10^5 ? is connected in parallel to the existing resistor in the circuit, What will be the new time constant
A loudspeaker of mass 21.0 {rm kg} is suspended the distance of h = 2.40 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.90 {rm m}.
To protect their young in the nest, peregrine falcons will fly into birds of prey (such as ravens) at high speed. What was the raven's speed right after the collision
How much friction must be exerted between the skates and ice.
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