A dark cloud can be detected if it happens to block the light emitted by more distant stars
Indicate whether the statement is true or false
TRUE
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Photoelectric Effect: Monochromatic light is incident on a metal surface, and the ejected electrons give rise to a current in the circuit shown in the figure. The maximum kinetic energy of the ejected electrons is determined by applying a reverse ('stopping') potential, sufficient to reduce the current in the ammeter to zero. If the intensity of the incident light is increased, how will the required stopping potential change?
A. It will remain unchanged. B. It will increase. C. It will decrease.
Consider a large truck and a small car driving up a straight, steep hill. The truck is moving at 60 miles per hour and the car at 30 miles per hour. Assuming that the speeds are constant, which of the two vehicles experiences a larger net force?
A. the truck B. the same: zero net force C. the car
The pascal is a pressure unit equal to
A) 1 newton per square meter. B) 1 kilogram per square meter. C) 1 newton per square centimeter. D) 1 kilogram per square centimeter.
Linear momentum has units of ______________
Fill in the blank(s) with correct word