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A 1.2-kg object moving with a speed of 8.0 m/s collides perpendicularly with a wall and emerges with a speed of 6.0 m/s in the opposite direction. If the object is in contact with the wall for 2.0 ms, what is the magnitude of the average force on the object by the wall?
Astronauts put their spaceship into orbit about a planet. Theyfind that the acceleration of gravity at their orbital altitude isone fourth that at the planet's surface. How far above the planet'ssurface are they orbiting? Answer in terms of the pl..
A 25.0-V potential source (a battery) is connected across the plates of a 6.66-µF air-filled parallel-plate capacitor having plates that are 1.22 mm apart. What energy density does it produce between the plates
What has happened to inventory over the same period? (use Little's Law)
A golf ball (mass = 46 g) is struck by a golf club (mass = 210 g). The club head's velocity, how fast is the ball moving after impact
A particle having a mass of 0.200 g carries a charge of ?2.34×10^?8 C. What are the magnitude of the minimum magnetic field that will balance the earth's gravitational pull on the particle
a car is accelerating while its horn is sounding. just after the car passes a stationary person the person hears a
A 300 kg dragster accelerates from rest to a final speed of 110 m/s in 400 m (about a quarter of a mile), What is its average power output in watts and horsepower
Two spheres are launched horizontally from a 1.0 meter high table. Determine the distances that each travels from the edge of the table
a base for a building column measures 18.0 in. by 18.0 in. on a side and 12 in. high. compute the cross-sectional area in both square inches and square millimeters. compute the volume in cubic inches, cubic feet, cubic millimemters, and cubic mete..
a 3.1 microc is at x 0 and a -2.0 microc charge is at x 4.2 cm. let v 0 at r infinity.a at what point along the
A nozzle of inner radius 1.05 mm is connected to a hose of inner radius 8.00 mm. The nozzle shoots out water moving at 25.3 m/s. What is the mass flow rate? What is the volume flow rate?
A block with mass m = 4 kg is sitting on the ground and not moving. The acceleration due to gravity is g = 9.81 m/s2. Please answer the following questions.
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