The temperature changes from 35°F during the night to 75°F during the day. What is the temperature change on the Celsius scale?
A)
72 C°
B)
40 C°
C)
32 C°
D)
22 C°
D
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An object is being acted upon by three forces and moves with a constant velocity. One force is 60.0 N along the x-axis, the second is 75.0 N along a direction making a counterclockwise angle of 150.0° with the x-axis
What is the magnitude of the third force? A) 37.8 N B) 62.4 N C) 67.5 N D) 130 N E) 135 N
Energy Conservation With Conservative Forces: Assuming negligible friction, what spring constant (force constant) would be needed by the spring in a "B-B gun" to fire a 10-g pellet to a height of 100 m if the spring is initially compressed by 0.10 m?
A. 20 N/cm B. 20 N/m C. 200 N/m D. 2000 N/cm E. 0.0020 N/m
When carbon and oxygen atoms combine, energy is
A) absorbed by the reaction. B) released by the reaction. C) not involved.
A quantity that has both a magnitude and direction associated with it is called a __________
Fill in the blank(s) with correct word