Power required of the force moving the cab
An elevator has a mass of 4500 kg and carrying a maximum load of 1800 kg . if the cab is moving upward with a full load at 3.8 m/s. The power required of the force moving the cab to maintain that speed.
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Suppose quantity r changes at a constant rate of 2 with respect to quantity p. What is the value of r when the value of p is -10?
Suppose X has chi-squared distribution with 2 df. Find E(X^55) exactly. [I used the fact that chi-squared with 2 df is the same as Exp(1/2) to get me started.. unsure of how to find a moment list)
If we connect an ammeter in series with the light bulb, how would the brightness of the light bulb be affected? How about connecting it in parallel with the light bulb?
A particle with a charge of 15 experiences a force of 2.3×10-4 when it moves at right angles to a magnetic field with a speed of 28 m/s.
If two identical cans of soup placed on the scale have a combined weight of 31.15 oz, what are the largest and smallest possible weights of one of the cans?
If the heat pump is reversed so that it acts as an air conditioner in the summer, what would be its coefficient of performance?
What is the minimum coefficient of static friction required between the contestants and the ice (assume that it is the same for both contestants)?
In the Bohr model of the hydrogen atom, a single electron revolves around a single proton in a circle of radius R
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