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A 41.2 kg woman starts from rest at the bottom of a flight of stairs that has a total height of 2.5 meters. She reaches the top of the stairs in 5.00 seconds. How much power does she generate if she is moving at 3.03 m/s at the top of the stairs?
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What is the (average) acceleration of a vehicle which speeds up from 22 m/s to 88 m/s in 21.2 seconds? please provide work to explain
Question: A proton has an initial speed of 3.5 x 10 5 m/s. a) What potential difference is required to bring the proton to rest? b) What potential difference is required to reduce the initial speed of the proton by a fac ...
Question: Which statements about potential energy are correct? Select all that apply. a) The potential energy of a pair of interacting charged objects increases as the distance between them increases. b) Potential energy ...
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When scared, a nine-banded armadillo will jump straight up in the air. The armadillo launches itself upward from the ground with a speed of v0 = 3.81 m/s. How long will the armadillo remain more than 0.033 m off the grou ...
Question: A small, 300 g cart is moving at 1.90 m/s on an air track when it collides with a larger, 5.00 kg cart at rest. After the collision, the small cart recoils at 0.890 m/s. Part A: What is the speed of the large c ...
Question: A proton moves along the x-axis with vx=1.0 x 10 7 m/s. a) As it passes the origin, what are the strength and direction of the magnetic field at the (1 cm, 0 cm, 0 cm) position? Give your answer using unit vect ...
Question: A student standing in a canyon yells "echo," and her voice produces a sound wave of frequency of f = 0.56 kHz. The echo takes t = 3.5s to return to the student. Assume the speed of sound through the atmosphere ...
Question - A stretched string has a mass per unit length of 5.00 g/cm and a tension of 10.0 N. A sinusoidal wave on this string has an amplitude of 0.12 mm and a frequency of 100 Hz and is traveling in the negative direc ...
Question: In recent years, astronomers have found planets orbiting nearby stars that are quite different from planets in our solar system. Kepler-12b, has a diameter that is 1.7 times that of Jupiter (RJupiter = 6.99 Ã- ...
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