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Q. A superball of mass = 50 g, initially held at rest, is dropped from a height of = 1.5 m. It collides with a table, then bounces up to a height of = 1.0 m. The duration of the collision (the time during which the superball is in contact with the table) is = 15 ms (). In this problem, take the positive y direction to be upwards, and use for the magnitude of the acceleration due to gravity.
Q. A 02385 mH inductor has a length that is four times its diameter. If it is wound iwth 10.3 cm^-1 truns per centimeter, what is its length? Answer in units of m.
A spider of mass m is sitting in a perfectly symmetric web (in a vertical plane with 45 angles between the web lines), where Ti's denote the tensions along the lines that are connected to the spider at the center with i = 1, 2, 3, 4, 5, 6, 7, 8. The ..
What is the total mass of the reagents used in the combustion throughout the 30 days . The ball makes 17 oscillations in 16 seconds. What is it the mass of the ball.
Find out the edge dimension of each cube
Two weights are connected by a very light flexible cord that passes over a 30 frictionless pulley of radius 0.100. The pulley is a solid uniform disk and is supported by a hook connected to the ceiling. One weight is 75N and the other is 125 N.
Needing help, secretary of the United States Department of Agriculture asked your teacher, "If a chicken and a half can lay an egg and a half in a day and a half, how many days will it takes three chickens to lay twenty eggs".
A point moves along the x-axis with its position, x, at time t given by x(t) = t3 - 3t2 + 2t - 1. Which of the following is the acceleration when t = 2?
If the average frequency emitted by a 200,-, rm W light bulb is 5.00 times 10^ {14}, {rm Hz}, and 10.0 percent of the input power is emitted as visible light, about how many visible-light photons are emitted per second.
A 3.2 mass attached to a spring with a spring constant of 114 is oscillating in a vat of oil, which damps the oscillations. If the damping constant of the oil is 10kg/s, how long would it take the amplitude of the oscillations to decrease to 1.0% ..
Find out kinetic energy of the merry-go-round
Regarding the Earth and a cloud layer 750 m above the Earth as the "plates" of a capacitor, calculate the capacitance. Assume the cloud layer has an area of 1 km2 and that the air between cloud and ground is pure and dry.
A block of ice at 0 degrees C, whose mass is initially 30.0 kg, slides along a horizontal surface, starting at a speed of 5.56 m/s and finally coming to rest after travelling 21.8 m. figure out the mass of ice melted (in grams) as a result of frictio..
How much work is completed on the box by the applied force
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