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A 75 kg man jumps from an airplane. When his parachute deploys, it exerts a 500 N force on the man at an angle of 30 degrees with respect to vertical. What is the net force acting on the man?
A ball with a horizontal speed of 1.25m/s rolls off a bench 1.00m above the floor. How long will it take the ball to hit the floor
A sphere consists of a solid wooden ball of uniform density 800 and radius 0.20 and is covered with a thin coating of lead foil with area density 20.
A skier who starts from rest reached a speed of 8.0m/s while goind down a ski slope for 5.0s. how far does the skier travel in this time
The displacement of a standing wave on a string is given by D = 8.8 sin(0.60x)cos(50t), where x and D are in centimeters and t is in seconds. (a) What is the distance (cm) between nodes
You are on an airplane traveling 30 ° south of due west at 100 m/s with respect to the air. What is the heading of the plane with respect to the ground
When two identical ions are separated by a distance of 8.6×10?10 m, How many electrons are missing from each ion
Consider an aircraft powered by a turbojet engine that has a pressure ratio of 12. The aircraft is stationary on the ground, held in position by its brakes. determine the force that must be applied on the brakes to hold the plane stationary
A baseball is hit so that it travels straight upward after being struck by the bat. A fan observes that it takes 2.80 s for the ball to reach its maximum height. Find the ball's initial velocity
A loudspeaker of mass 22.0 {rm kg} is suspended a distance of h = 1.60 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.90 {rm m}.
find the speed of the test charge when it reaches the center of the square.
If the airplane somehow continues to fly as if nothing had happened, where is engine relative to the airplane at the moment the engine hits ground.
A 25g ball is fired with an initial speed v1 toward a 150g ball that is hanging motionless from a 1.30m string. The balls have a perfectly elastic collision. As a result, 150 g ball swings out until the string makes an angle of 37° with vertical. ..
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