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Wrongly called for a foul, an angry basketball player throws the ball straight down to the floor. If the ball bounces straight up and returns to the floor 2.2 s after first striking it, what was the ball's greatest height above the floor?
You are an astronaut (m = 90 kg) and travel to a planet that is the same mass and size as Earth, What is your apparent weight at the equator of this planet
A storage tank has a diameter of 80 ft, a height of 25 feet, andcontains oil to a height of 15 ft. The suction pumps, whichcan handle 15, 000 bbl/d are started, but the safety valves areclogged and a vacuum is drawn in the tank.
A projectile is fired in such a way that its horizontal range is equal to 7 times its maximum height. What is the angle of projection
A small puck of mass m=0.1kg moves in a circle of radius 0.3m on a table top; the puck is tied with a massless string to a tether at the origin. find the tension in the string at the end of one revolution
What is the net upward force on an airplane wing of area 20.7 m2 if the speed of air flow is 232 m/s across the top of the wing and 215 m/s across the bottom? (The density of air where the airplane flies is ρair = 1.21 kg/m3.)
One component of a magnetic field has a magnitude of 0.0406 T and points along the +x axis, Determine the angle that the net force makes with regard to the +x axis
a 2.20 mol sample of helium gas initially at 300 k and 0.400 atm is compressed isothermally to 1.30 atm. note that the
Reply in m/s. Also, why does the car's mass not matter.
a rocket-powered hockey puck has a thrust of 2.70 n and a total mass of 2.30 kg. it is released from rest on a
A uniformly charged ring is 1.0 cm in radius. The electric field on the axis 3.5 cm from the center of the ring has magnitude 2.5MN/C
In 1.12 minutes, a ski lift raises four skiers at constant speed to a height of 133 m. The average mass of each skier is 67.6 kg. What is the average power provided by the tension in the cable pulling the lift?
A popular pastime is to see who can push an object closest to the edge of a table without its going off. what was the object's speed as you released it
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