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A lab weight hangs from a string running over a pulley. Draw a free body diagram for the weight on the image below. For each force acting on the weight, draw an arrow starting at the black dot. The lengths of the arrows will not be graded, but be sure to accurately draw the direction of each arrow.
What is the resistance of a wire of the same material as the first wire, but whose length is 30.0 rn, and whose area is 9.00 x 10-6 mz? Show your work.
A 550 N physics student stands on a bathroom scale in an elevator. As the elevator starts moving, the scale reads 450N. (a) Find the acceleration of the elevator. Find the mass of the worker.
At our distance from the Sun, the intensity of solar radiation is 1370 W/m2. The temperature of the Earth is affected by the greenhouse effect of the atmosphere.
A 3.45 kg mass vertically compresses a spring 67.0 cm before it starts to rebound. How high will the Mass move above the uncompressed it the mass is left to "bounce" back up?
A stone is thrown from the top of a cliff that is 34.6 m high at a velocity of 13 m/s 230 above the horizontal. How long does it take to hit the ground below the cliff
The length of a moving spaceship is 28.4 m according to an astronaut on the spaceship. what is the speed of the spaceship
Calculate the efficiency of an "ideal" engine operating between the same temperature extremes.
nuclear-pumped x-ray lasers are seen as a possible weapon to destroy icbm booster rockets at ranges up to 2000 km. one
question1a 32 percent efficient electric power plant generates 700mw of electric power and discharges waste heat into
A 500 gram model rocket is on a cart that is rolling to the right at a speed of 3.0 m/s. Find at what horizontal distance left of the loop should you launch
An airplane propeller is 2.68 m in length (from tip to tip) and has a mass of 137 kg. When the airplane's engine is first started, it applies a constant torque of 1930 N . m to the propeller, which starts from rest. What is the average power outpu..
The average distance between the proton and the electron in a hydrogen atom is 5.29 x 10-11 m. With the particles separated by this distance, the 'Bohr radius,' what is the electric potential energy of the configuration?
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