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A tennis ball (m=0.2 kilogram) is thrown a brick wall. It is traveling horizontally at 16 m/s just before hitting the wall and rebounds from the wall at 8 m/s, still traveling horizontally. The ball is in contact with the wall for 0.04 second. Obtain the magnitude of the average force of wall on ball.
Planet-X has a mass of 4.25×1024 kg and a radius of 6050 km. What is the Second Cosmic Speed i.e. the minimum speed required for a satellite in order to break free permanently from the planet
A 10 microcoulomb charge is placed at the origin and a 20 microcoulomb charge is placed on the x-axis at x = 40 cm. what is the magnitude of the force it will experience
A 605 N woman climbs a staircase that rises at 47 degrees above the horizontal and is 4.70 m long. Her speed is a constant 40.0 cm/s. How much work has gravity done on her as she climbed the stairs
A 51.0-g Super Ball traveling at 27.0 m/s bounces off a brick wall and rebounds at 21.5 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.75 ms,
Explain how would the amounts relating to the lease be shown on Lessor's balance sheet at 31 December 20X3? Assume that the lessor has an unclassified balance sheet.
dolphins communicate using sound waves underwater. suppose a dolphin emits a sound wave with frequency 660 hz while
the central order for a diffraction pattern from a rectangular aperture is measured to be 15 mm high and 5 mm wide on a
Through 0.21 s, a wheel rotates through an angle of 2.12 rad as a point on the periphery of the wheel moves with a constant speed of 2.62 m/s. What is the radius of the wheel?
a variable capacitor is connected in series to an inductor with negligible internal resistance and of inductance 4.25 x
A gold prospector finds a solid rock that is composed solely of quartz and gold.The total mass and total volume of the rock are, respectively, 13.0 kg and 3.50 10-3 m3. determine the mass mG of gold in the rock
A fire breaks out and increases the Kelvin temperature of a cylinder of compressed gas by a factor of 2.9. What is the final pressure of the gas relative to its intitial pressure?
a mass m1 7.98kg is at rest on a frictionless horizontal surface and connected to a wall by a spring with k 64.6 nm. a
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