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A gymnast of mass 64.0{\rm kg} hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and assume that the rope does not stretch. Use the value 9.81 {\rm m/s^2} for the acceleration of gravity. Calculate the tension T in the rope if the gymnast hangs motionless on the rope. Express your answer in newtons. Calculate the tension T in the rope if the gymnast climbs the rope at a constant rate. Express your answer in newtons.
an object of mass 39 kg is observed to accelerate with an acceleration of 2.0 m/s^2. If friction is so mall that it can be ignored, what is the force applied to the object in newtons
An asteroid, whose mass is 1.5 x 10-4 times the mass of Earth, find the period of revolution of the asteroidin years
A cylindrical aluminum rod, with an initial length of 0.8200 m and radius 1200.0 µm, is clamped in place at one end and then stretched by a machine pulling parallel to its length at its other end. Assuming that the rod's density (mass per unit volume..
The Position of the object (wire gauze) on the meter stick is at the 5.00 cm mark. What is his value for the focal length of the lens
A gas is kept at constant pressure. If its temperature is changed from 15 to 145°C, by what factor does the volume change
The space shuttle performs a retro burn for 3.5min to go from an orbital velocity of 17,500mph to re-entry velocity of 5000mph.
A square loop of wire with a side length of 20.1cm carries a current of0.9A. What is the magnitude of the magnetic field in the center of the square loop?
The efficiency of a particular Carnot engine is 0.310, Find the temperature of the low-temperature reservoir
A 1.65 block is attached to a spring with spring constant 17. While the block is sitting at rest, a student hits it with the hammer and almost instantaneously gives it a speed of 59.
A 1650-kg car is traveling at 34 m/s. How fast must a 91 kg bicycle and rider be traveling to have the same kinetic energy as the car.
A cylindrical nsulated wire of diameter 2.0 mm is tightly wound 200 times around a cylindrical core to form a solenoid with adjacent coils touching each other. When a 0.10 A current is sent through the wire, what is the magnitude of the magnetic fiel..
A square with ½-meter long sides has +1 nC at the top left corner, +2 nC at the bottom right corner, Calculate the components of the Electric field at the top left corner add each contribution separately
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