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Q. The summit of a mountain, 2450 m above base camp, is measured on a map to be 4580 m horizontally from the camp in a direction 32.4 degree west of north. What are the components of the displacement vector from camp to summit? What is its magnitude? choose the x axis east, y axis north, and z axis up
Q. To keep a room at a comfortable 21.0°C a Carnot heat pump does 345 J of work and supplies it with 3240 J of heat.
(a) How much heat is removed from the outside air by the heat pump?
(b) What is the temperature of the outside air?
What is the wavelength of the waves emitted by source? What is the difference in frequency between directly radiated waves and the waves reflected from a whale travelling straight toward the ship at 4.99? Suppose that the ship is at rest in the water..
A ball rolling along at speed v without slipping on a horizontal surface while it comes to a hill that rises at a constant angle above the horizontal.
What mass of water at 29.0°C added to a Styrofoam cup containing two 60.0 g ice cubes from a freezer at -16.0°C will result in a final temperature of 5.00°C for the drink? Explain it.
Change values of the initial position, initial velocity, and the acceleration of the car so that its center follows the same path as the dot. What is the equation that describes motion of the dot.
suppose the specific heats of milk and coffe are the same as that of water, and neblect the specific heat of the container.
Compute the ground state energy and wavefunction
What is coefficient of friction between chair and floor
How much charge passes during the starter motor
Two students are on a balcony 18.30 m above the street. One student throws a ball, b1, vertically downward at 16.80 m/s. At the same instant, the other student throws a ball, b2, vertically upward at the same speed.
When the front of the train passes the worker. A 1500 kg car moving north at 27.0 m/s is struck by a 2165-kg car moving east at 18.0 m/s. The cars are stuck together. How fast and in what direction do they move immediately after the collision.
A 56.0 kg person jumps from rest off the 9.0 m high tower straight down into the water. Neglect air resistance throughout the descent. She comes to rest 3.40 m under the surface of the water. Find out the magnitude of the average force that the water..
A 790-kg object and an 889-kg object are separated by 11.0 m. At what position (from the less massive object) can the 260-kg object be placed so as to experience a net force of 10 N towards the less massive object.
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