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A 50 kg skater pushes off horizontally for a distance of 0.4m witha force of 150N. If she travels 80m before stopping, what is the coefficient of friction?
Determine the wave's amplitude. Determine the wave's wavelength. Determine the wave's frequency. Determine the wave's speed of propagation. Determine the wave's direction of propagation.
A diver springs upward from a board that is 3.15 meters above the water. Determine her initial speed as she leaves the board
A fan turns at a rate of 900 rpm (i.e., rev/min). Find the angular speed of any point on one of the fan blades
A wave pulse travels down a slinky. The mass of the slinky is m = 0.86 kg and is initially stretched to a length L = 7.8 m. What is the average speed of a piece of the slinky
question a 16 g ball of clay traveling east at 3.4 ms collides with a 30 g ball of clay traveling north at 2.0 ms. what
The spring of the pressure gauge shown in the figure below has a force constant of 1471 N/m, what change in depth causes the piston to move in by 0.750 cm
You're 6.0 m from one wall of a house. You want to toss a ball to your friend who is 6.0 m from the opposite wall. The throw and catch each occur 1.0 m above the ground
Given a pair of forces, one with magnitude 27.3 N at an angle of 24 degrees clockwise from the +x direction and the other with magnitude 15.7 N exactly in the +x direction: Find the direction of the acceleration
An astronaut is traveling in a space ship that has a speed of0.99c relative to the Earth. What pulse rate does the Earth observer measure
The mass of the Sikorksky UH-60A helicopter is 9300kg. It takes off vertically at t=0. How fast is the helicopter rising 3 seconds after it takes off
At three corners of a rectangle (length 11.8 cm, height 5.9 cm), the following charges are located: q1 (upper left corner), q2 (lower right corner), and q (lower left corner).
A blue car with mass mc = 428 kg is moving east with a speed of vc = 20 m/s and collides with a purple truck with mass mt = 1284 kg, What is the magnitude of the initial momentum of the car
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