When a proton moves in a direction of the electric field, its potential increases but its potential energy decreases
Indicate whether the statement is true or false
TRUE
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From the South Pole, Polaris would appear directly overhead
Indicate whether the statement is true or false
According to Kepler's Third law a planet's orbital period is directly proportional to the cube of its:
a.semi-major axis b. focus c. ellipse d. circumference
Pluto has only a single moon, Charon
Indicate whether the statement is true or false
A container is filled with a mixture of helium and oxygen gases. A thermometer in the container indicates that the temperature is 22°C. Which gas molecules have the greater average kinetic energy?
A) It is the same for both because the temperatures are the same. B) The oxygen molecules do because they are diatomic. C) The oxygen molecules do because they are more massive. D) The helium molecules do because they are less massive. E) The helium molecules do because they are monatomic.