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A painter of mass 70.0 kg stands on a platform of mass 75.0 kg and pulls on two ropes which hang over pulleys. He pulls each rope with a force of 750.0 N. Assuming a coordinate system where +y is up, calculate the y-component of the acceleration ay. ay can either be positive or negative depending on the direction of the acceleration.
If our Sun were fourteen times as massive as it is, determine how many times faster or slower should the Earth move in order to remain in the similar orbit
Two spectators at a soccer game in Montjuic Stadium see, and a moment later hear, the ball being kicked on the playing field. How far is each spectator from the player
The axis of a cylindrical container is vertical. The container is filled by equal masses of water and oil. The oil floats on top of the water, and the open surface of the oil is at a height above the bottom of the container.
Compute the enthropy change of the lead that occurs when 2.00 kg of lead at 40.0oC are placed in a very large quantity of water at 10.0oC (this means the water does not change temperature and the equilibrium temperature is 10.0oC). The specific heat ..
A rigid rod of mass 3.50 kg and length of 1.50 m rotates in a vertical (x,y) plane about a frictionless pivot through its center. Determine the size of the angular acceleration of the system
A mass hangs on the end of a massless rope. The pendulum is held horizontal and released from rest. When the mass reaches the bottom of its path it is moving at a speed v = 2.4 m/s and the tension in the rope is T = 15.1 N.
The 1100-kg mass of a car includes four tires, each of mass(including wheels) 35kg and diameter 0.80m. Assume each tire andwheel combination acts as a solid cylinder.
An X-ray beam of wavelength 0.01nm strikes a target containing free electrons. determine The change in wavelength of the scattered x-ray
A block of mass 0.731 kg on a spring with spring constant 235.3 N/m oscillates vertically with amplitude 0.545 m. What is the speed of this block at a distance of 0.335 m from the equilibrium position
A man with limited accommodation is prescribed lenses of power -2.0 diopters for distant vision. Determine what the power of the inserts
a a particle of charge 40.00 c travels along the negative x-axis with a speed of 100.00 ms. calculate the magnitude of
NASA launched the Near Earth Asteroid Rendevous (NEAR), which,after traveling 1.3 billion miles, What will be the peroid of NEAR as it orbits Eros
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