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Problem: In a Broadway performance, an 65.9-kg actor swings from a 3.30-m-long cable that is horizontal when he starts. At the bottom of his arc, he picks up his 55.0-kg costar in an inelastic collision.
Part A: What maximum height do they reach after their upward swing?
Please explain how you came to your conclusion.
An ice cube of mass of 10 g is taken from the freezer at-10ºC and placed into 200 ml of water in a 100-g glasscontainer at 20ºC. What will be the final temperature of the mixture after the ice has melted? The specific heat of ice is 2100J/(kg ºC),..
The displacement of a harmonic oscillator is given by y = 7.1 sin(25t), where the units of y are meters and t is measured in seconds. Evaluate what is its maximum velocity
The seconds hand on a certain clock is 15.8 cm long. What is the tangential speed (in cm/s) of the tip of this hand
A silver rod and a common glass rod both have the same length when at 20.0°C. The silver rod is heated to 52.3°C. To what temperature must the glass rod be heated so that they are again at the same length?
An automobile of mass 1500 kilogram moving at 25.0 m/s collides with a truck of mass 4500 kilogram at rest. Determine the final velocity of that car and truck just after the collision
An airplane is flying with a velocity of 98.0 at an angle of 24.0 above the horizontal. How far from the dog will the suitcase land
A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 4.57 m/s relative to the ground. How fast is the train moving
a car of 1200 kg travels east call it x at 24 ms while a truck of 2200 kg travels north call it y at 19 ms. they
What is an acceleration of two falling sky divers (mass 100.0 kg including parachute) when the upward force of air resistance is equivalent to one-fourth of their weight. How fast would the father be moving.
An aluminum rod and a copper rod of same diameter are joined end to end in good thermal contact. calculate what must be the length of the aluminum rod thus that the temperature at the junction is 50°C
Two identical metallic blocks resting on a frictionless horizontal surface are connected by a light metallic spring having a spring constant k as shown in the figure and an unstretched length Li
question1a boat crosses a river of width 171 m in which the current has a uniform speed of 1.51 ms. the pilot maintains
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