A system consisting of a negatively-charged particle and an electric field
a. gains potential difference and kinetic energy when the charged particle moves in the direction of the field.
b. loses electric potential energy when the charged particle moves in the direction of the field.
c. gains kinetic energy when the charged particle moves in the direction of the field.
d. gains electric potential energy when the charged particle moves in the direction of the field.
e. gains potential difference and electric potential energy when the charged particle moves in the direction of the field.
d
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Pulsars slow their pulse rate because:
a. they convert energy of rotation into radiation. b. they drag companion stars around, causing them to slow. c. of friction with the interstellar medium. d. of the conservation of angular momentum.
Every square inch of our body, at sea level, sustains ______________ of atmospheric pressure
a. 14.7 lb b. 1.47 g c. 14.7 g d. 1.47 lb
If an ideal gas molecule has a speed of 0.50 km/s at 20°C, what is its speed at 80°C?
A) 500 m/s B) 2000 m/s C) 550 m/s D) 1000 m/s
Complete and balance the equation: Zn + AgNO3(aq) ? ____________________
Fill in the blank(s) with correct word