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A 1.5-kg playground ball is moving with a velocity of 3.0 m/s directed 30° below the horizontal just before it strikes a horizontal surface. The ball leaves this surface 0.50 s later with a velocity of 2.0 m/s directed 60° above the horizontal. What is the magnitude of the average resultant force on the ball?
The masses of astronauts are monitored during long stays in orbit, such as when visiting a space station. What is the mass of an astronaut who has an oscillation period of 2.00 s when in the chair
A fuel pump sends gasoline from a car's fuel tank to the engine at a rate of 6.44 10-2 kg/s. What is the speed at which the gasoline moves through the fuel line
In a charming 19th-century hotel, an old-style elevator is connected to a counterweight by a cable that passes over a rotating disk 3.50 m in diameter. The elevator is raised and lowered by turning the disk, and the cable does not slip on the rim ..
A constant force, F = (4.51, ?3.79, 2.30) N, acts on an object of mass 18.2 kg, What is the total work done by this force
A Big Mac has 3,100,000 Joules of chemical energy, what is the cost of the electric energy equivalent to the energy in a Big Mac
A charge -318e is uniformly distributed along a circular arc of radius 7.00 cm, which subtends an angle of 49o, What is the linear charge density along the arc
A 94.00 water skier floating in a lake is pulled from rest to a speed of 10 in a distance of 24. What is the net force exerted on the skier, assuming his acceleration is constant.
A charge of 3.0 micro coulombs and a second charge are initially far apart. If it takes 29 J of work to bring them to a final configuration in which the 3.0 micro coulombs is at x = 1.0 mm,
computer chips are etched on circular cylinder wafers of thickness 0.60mm that are sliced from a solid cylindrical silicon crystal of length 30cm . If each wafer can hold 100 chips, what is the maximum number of chips that can be produced from one..
A large storage tank, open to the atmosphere at the top and filled with water, Determine the speed at which the water leaves the hole
A rock climber throws a small first aid kit to another climber who is higher up the mountain. What is the vertical height between the two climbers
A uniformly charged conducting sphere of 1.6 m diameter has a surface charge density of 8.4 µC/m2. Find the net charge on the sphere
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