A constant net force acting on an object that is free to move will produce a constant
a. speed.
b. velocity.
c. displacement.
d. acceleration.
e. distance.
d
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A mild steel weldment is bolted to another mild steel surface. The contact pressure is estimated at 20 atm and the expected heat transfer between the two parts is 300 Btu/hr?in^2. Estimate the temperature drop at the contact due to thermal contact resistance.
What will be an ideal response?
Since the Moon is about 0.5 degrees in angular diameter, about how far does it move in 24 hours across the background of the constellations?
a. 0.5 degrees b. 1.0 degree c. 2 degrees d. 9 degrees e. 13 degrees
A current reading is obtained by properly placing an ammeter in a circuit consisting of one resistor and one battery. As a result
A) the voltage drop across the resistor increases. B) the current flowing in the circuit increases. C) the current flowing in the circuit decreases. D) the current flowing in the circuit does not change.
Which of the following polymers is a hydrocarbon?
a. Polyethylene b. PVC c. Teflon d. Dacron