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An athlete executing a long jump leaves the ground at a 32.5 degree angle and travels 7.67 meters.
What was the take off speed? (v= m/s)
If this speed were increased by just 4.0%, how much longer would the jump be?
A 124 balloon carrying a 22 basket is descending with a constant downward velocity of 25.2. A 1stone is thrown from the basket with an initial velocity of 19.9 perpendiculars to the path of the descending balloon.
Two billiard balls of equal mass move at right angles and meetat the origin of an xy cordinate system. What is the final direction of ball A and what are their two speeds
An object weighs 277 N in the air. When tied to a string, connected to a balance, and immersed in water, it weighs 221 N. When it is immersed in oil, it weighs 257 N.
The back wall of a home aquarium is a mirror that is a distance of 30.0 cm away from the front wall. The walls of the tank are negligibly thin. find the apparent distance between the fish and the front wall
object o1 is 15.2 cm to the left of a converging lens with a 11.8-cm focal length. a second lens is positioned 10.0 cm
A soccer player kicks the ball toward a goal that is 27.0 m in front of him. Find the speed of the ball when the goalie catches it in front of the net
A 45-kg crate slides to the left initially at a speed of 5.2 m/s. A rope pulls on it with a tension of 240 N in a direction 35 degrees above the horizontal to the right. How much time is required to bring the crate to a stop
A ball of mass 0.120 kg is dropped from rest from a height of 1.25 m. What impulse was given to the ball by the floor
two stationary positive point charges charge 1 of magnitude 3.25nc and charge 2 of magnitude 1.60nc are separated by a
A 100 meter length of steel changes temperature by 30 C during the course of a day. If the coeffcient of thermal expansion of steel is 12 parts per million per C, what is the change in length of the steel
A square loop with sides of 20 cm is falling through a magnetic field at v=5 m/s. The magnetic field is going into the page and is increasing as the loop falls farther through it. B = 3.0 T - 1.5 T * y. Also, the acceleration due to gravity is 9.8..
A block with a weight of 3.0 N is at rest on a horizontalsurface. A 1.0 N upward force is applied to the block by meansof an attached vertical string. What are the (a) magnitude of and(b) direction of the force of the block on the horizontalsurface?
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