Motion in a circle at constant speed is motion with constant velocity
a. True
b. False
Indicate whether the statement is true or false
False
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The identical 50-kg masses are held at the corners of an equilateral triangle, 30 cm on each side
If one of the masses is released, what is its initial acceleration, if the only forces acting on it are the gravitational forces due to the other two masses? A) 3.7 × 10-8 m/s2 B) 2.5 × 10-8 m/s2 C) 1.9 × 10-8 m/s2 D) 4.2 × 10-8 m/s2 E) 6.4 × 10-8 m/s2
The radiation curve for a red hot fire-place poker peaks in the
A) infrared region. B) green region. C) ultraviolet region.
In twice the time, an object will fall
A) 16 times as far. B) 12 times as far. C) four times as far. D) twice as far. E) eight times as far.
Control rod material must absorb neutrons
What will be an ideal response?