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As part of an excercise program, a woman walks south at a speed of 2.00 m/s for 60 minutes. She then turns around and walks north a distance of 3000 m in 25.0 minutes. What is the womans avg velocity?
A 7.01- g bullet is moving at 563.00 m/s as it leaves the 0.58- m-long barrel of a rifle. What is the average force on the bullet as it moves down the barrel
Under favourable circumstances the human eye can detect 1.0e-18 J of electromagnetic energy. How many 600-nm photons does this represent.
A bowling ball with a mass of 6.8 kg strikes a stationary pin that has a mass of 1.6 kg. After the collision, the pin flies forward (in the positive x direction) with a speed of 7.3 m/s, and the ball continues forward at 3.2 m/s (in the positive x..
The mass of the motorcycle and driver is 348 kg. Find out the magnitude of the normal force that acts on the cycle.
The loaded cab of an elevator has a mass of 3.0 x 10^3 kg and moves 145 m up the shaft in 23 s at constant speed. At what average rate does the force from the cable do work on the cab.
Determine the time it takes for the particle. A particle is traveling in a straight line at a constant speed of 28m/s. Suddenly, a constant force of 15.6N acts on it, bringing it to a stop in a distance of 66.8m.
find the ratio of vb to vr, where vr is defined above and vb is the boats speed with respect to the water.
An oscillator with a mass of 420 g and a period of 0.900 s has an amplitude that decreases by 1.90 percent during each complete oscillation.
A 15 g bullet traveling at 485 m/s strikes a 0.9 kg block of wood that is balanced on a table edge 0.7 m above ground. If the bullet buries itself in the block, find out distance D at which the block hits the floor.
Sketch complete free body force diagrams for each crate. A person with his ear to the ground sees a huge stone strike the concrete pavement a moment later 2 sounds are heard from an impact one travels in the air and the other in concrete.
What fraction of incident intensity is transmitted by system
Two charged spheres are 8.45 cm apart. They are moved and the force on each of them is found to have been tripled. How far apart are they now.
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