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Question1
A child slides down a slide with a 31 degree incline, and at the bottom her speed is precisely one-third what it will have been if the slide had been frictionless. Compute the coefficient of kinetic friction between slide and child.
Question2
Two asteroids, drifting at constant velocity, collide. The masses and velocities of the asteroids before the collision are indicated.
Throughout the collision, is the magnitude of the force of asteroid A on asteroid B greater than, less than, or equal to magnitude of the force of asteroid B on asteroid A?
Mass A= 500 kg Velocity of A= 20 m/s
Mass B=250kg Velocity of B= 10m/s
What is the wavelength of the waves emitted by source? What is the difference in frequency between directly radiated waves and the waves reflected from a whale travelling straight toward the ship at 4.99? Suppose that the ship is at rest in the water..
The coefficient of static friction between the ladder and the ground is 0.55, and the ladder makes a 50.0° angle with the ground. Explain how far up the ladder can an 720 N person climb before the ladder begins to slip?
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The temperature in Browning, Montana, was 44.0 °F on January 23, 1916. The next day the temperature plummeted to - 56.0 °F. What was the temperature change in Celsius degrees?
The proper length of one spaceship is five times that of another. The two spaceships are traveling in teh same direction, determine the speed of the other faster spaceship
A 50cm long non-conducting cylinder of radius 4cm has a volume charge density of 30 uC/m^3. A grounded conducting cylindrical shell of radius 6cm is placed concentrically around the charged cylinder.
A rock is thrown horizontally with a speed of 19 m/s from a vertical cliff of height 30 m. How far will it land from the base of the cliff
Two automobiles drive in the same direction next to the highway. Each moves initially at speed v = 30 meters per second, (that's 67.11 miles per hour) and the distance between them is D meters.
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