Sand drops vertically from a stationary hopper at a constant rate of 100 gram per second onto a horizontal conveyor belt moving at a constant velocity, ~v, of 10 cm/sec. 1. what force (magnitude and direction relative to the velocity) is required to keep the belt moving at a constant speed of 10 cm/sec? 2. how much work is done by this force in 1.0 second? 3. what is the change in kinetic energy of the conveyor belt in 1.0 second due to the additional sand on it? 4. should the answers to parts 2. and 3. be the same? explain.
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Physics, 21.06.2019 21:00
In the 1980's, congress authorized the u.s. department of energy to build the wipp facility in the chicuahuan desert in new mexico. what is the purpose of wipp?
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Physics, 22.06.2019 11:30
If we relied solely on the nonrenewable resources found in the u.s., which one would we run out of first at current usage levels? a. natural gas b. oil c. uranium d. coal
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Physics, 22.06.2019 15:00
Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14ÏÏ”0. d)the ball will oscillate along the z axis between z=d and z=âd in simple harmonic motion. what will be the angular frequency Ï of these oscillations? use the approximation dâȘa to simplify your calculation; that is, assume that d2+a2âa2. express your answer in terms of given charges, dimensions, and constants
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Physics, 22.06.2019 19:30
Juliette sets the initial velocity to +10 m/s, the acceleration to zero, and clicks âstart.â how can shakina describe the subsequent motion of the car juliette controls?
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Sand drops vertically from a stationary hopper at a constant rate of 100 gram per second onto a hori...
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