What is the speed of the truck
A baseball pitcher can throw a ball with a speed of 40. He is in the back of a pickup truck that is driving away from you. He throws the ball in your direction, and it floats toward you at a lazy 30. What is the speed of the truck?
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A hockey puck slides off the edge of the table with an initial velocity of 20.0m/s. the height of the table above the ground in 2.0m. what is the magnitude of the verticle component of the velocity of the puck just before it hits the ground?
Children in a tree house lift a small dog in a basket 5.50 m up to their house. If it takes 191 J of work to do this, what is the combined mass of the dog and basket?
A stone is dropped from rest into a well. The sound of the splash is heard exactly 2.30 s later. Find the depth of the well if the air temperature is 14.0°C.
The orbit of earth's moon has a period of 27.3 days and a radius (semi-major axis) of 2.56 x 10-3 A.U. (= 3.84 x 105 km). What is the mass of Earth? What are the units?
Suppose you have 3.0mol of O2 gas. How many coulombs of positive charge are contained in this gas in the atomic nuclei?
Object A, which has been charged to +10nC, is at the origin. Object B, which has been charged to -22nC, is at (x,y)=(0.0cm,2.0cm). What is the magnitude of the electric force on object A? What is the magnitude of the electric force on object B? Wh
A spaceship moves away from Earth at a speed 0.874c and fires a shuttle craft that then moves in a forward direction at 0.21c relative to the ship. The pilot of the shuttle launches a probe forward at a speed of 0.412c relative to the shuttle. Det
A car drives straight off the edge of a cliff that is 47 m high. The police at the scene of the accident observed that the point of impact is 122 m from the base of the cliff. How fast was the car traveling when it went over the cliff?
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