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Scientists in a laboratory produce a sound wave in a simulated environment (air) with a velocity of 476 m/s. What is the temperature (in Kelvin) of the environment?
A bowling ball of mass 7.00kg is rolling at 3.00m/s along a level surface. Calculate the ball's rotational kinetic energy
An 1800W toaster, a 1.3kW electric frying pan, and a 120 W lamp are plugged into the same 35A, 140V circuit. what is the resistance of each device
Find out the precession period of the axis
At what average rate does the force from the cable. A falling skydiver has a mass of 54.5 kg. What is the magnitude of the skydiver's acceleration when the upward force of air resistance has the magnitude that is equal to one-fourth of his weight.
A horizontal rifle is fired at a bull's-eye. The muzzle speed of the bullet is 650 m/s. find the horizontal distance between the end of the rifle
You come across an open container which is filled with two liquids. Since the two liquids have different density there is a distinct separation between them. what is the density of the unknown fluid
A car moving at 10.0 m/s encounters a bump that has a circular cross-section with a radius of 30.0 m. when the car is at the top of the bump
A Simple Harmonic Oscillator consisting of a 305 g mass and a spring is set oscillating on a smooth flat surface. If the greatest speed of the mass is 1.50 m/s and the spring constant of the spring is 2.00 N/m.
Suppose a monochromic light strikes a grating at normal incidence. what is the frequency of the light that passes through
Suppose an ideal monatomic gas at an initial temperature of 475 K is compressed from 3.20 L to 2.15 L while its pressure remains constant at 1.01 105 Pa. Find the work done on the gas.
On another planet the simple pendulum consisting of a 0.154 kg mass suspended on a 1.20 m long string has a period of 3.860 seconds. What is acceleration on this planet.
A transformer connected to a 100 V (rms) ac line is to supply 8.0 V (rms) to a portable electronic device. What rms current must the secondary supply
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