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A garden hose by 440 g of mass per meter of length is lying on the ground. You pull on the hose, producing 12N of tension, and then shake it from side to side to make waves. At what average rate should you do work if you displace the hose 25 cm either side of its equilibrium position, completing two full back-and-forth cycles every second? What will be the distance among wave crest
at the top of a giant swing on the high bar,a 50kg gymnast's velocity is 1 m/s,and he is 3.5 m high. What is the gymnast's total mechanical energy at this instant
Two current-carrying wires are exactly parallel to one another and both carry 3.5 A of current, What is the direction of the magnetic force caused by wire 2 on wire 1
A physics student is standing on an initially motionless,frictionless turntable with rotational inertia 0.31kg·m2. He's holding a wheel of rotational inertia0.22 kg·m2 spining at 128 rpm about a vertical axis, as we showed inFig. 11.8.
An object moves 2.95m in the +x-direction under the influence of a 125N force directed 52 degrees above the x-axis. Find the work done on the object
Is the momentum change identical? If not, the ball would have the larger momentum change throughout the collision with the wall?
A water molecule floating in the air loses one electron, becoming an ion, What is the magnitude of the electric force between the electron and the water ion
A downward force of 60 N is exerted on the top of the book by a hand pushing down on the book. What is the gravitational force acting on the book
A boy shoves his stuffed toy zebra down a frictionless chute, starting at a height of 1.49 m above the bottom of the chute and with an initial speed of 1.55 m/s. How far from the bottom of the chute does the toy zebra come to rest
A 0.20-kg object is oscillating on a spring with a spring constant of k = 15 N/m. What is the potential energy of the system
a spring with a spring constant of 230.6 nm is compressed by 0.251 m. then a steel ball bearing of mass 0.0441 kg is
A 10-kg projectile launched over level ground has three times the kinetic energy at the moment of its launch as it does at its peak height. Find its impact velocity
An arrow, starting from rest, leaves the bow with a speed of25 m/s. with what speed wouldthe arrow leave the bow
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