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The record distance in the sport of throwing cowpats is 81.1 m. This record toss was set by Steve Urner of the United States in 1981. Assume the initial launch angle was 45° and neglect air resistance. (a) Determine the initial speed of the projectile. m/s (b) Determine the total time the projectile was in flight? s (c) Qualitatively, how would the answers change if the launch angle were greater than 45°? Explain.
Two crates, of mass 75.0 kg and 109 kg, are in contact and at rest on a horizontal surface. A 732 N force is exerted on the 75.0 kg crate. What is the force the each crate exerts on the other.
Suppose a ship heads directly north away from the docks in a harbor at a speed of 5.00 km/h. what is the Distance from dock
In 2.8 days the number of radioactive nuclei decreases to one-eighth the number present initially
A 5kg box is pushed across a level floor with a net force of 50 N in the direction of the displacement of 10m. What is the total work done on the box
A cylinder rotating about its axis with a constant angular acceleration of 1.8 rad/s^2 starts from rest at t=0. what is the magnitude of the total linear acceleration of a point on the rim
A wheel initially rotating at an angular speed of 2.4 rad/s turns through 30 revolutions during the time, How long did the acceleration last
The barrel of a compound microscope is 13.0 cm in length. The specimen will be mounted 1.00 cm from the objective, Determine the focal length of the objective lens
A projectile is launched at an angle of 60o with respect to the horizontal from the edge of a cliff which is 100 m high. Its initial speed is 30 m/s. find the displacement vector for the motion of the projectile
question1a mountain climber in procedure of crossing between two cliffs by a rope pauses to rest. she weighs 521 n. as
questiona student standing on a stationary skateboard tosses a textbook with a mass of mb 1.55 kg to friend standing
A 100-m-long train accelerates uniformly from rest. If the front of the train passes a railway worker 166-m down the track at a speed of 21 m/s, what will be the speed of the last car as it passes the worker.
A ball is shot from the top of a building with an initial velocity of 20 m/s at an angle ? = 44° above the horizontal. If a nearby building is the same height and 55 m away, how far below the top of the building will the ball strike the nearby build..
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