As a ball falls freely toward the ground, its total

mechanical energy

(1) decreases

(2) increases

(3) remains the same

Energy is measured in watts and work is measured in joules. true or false?

As matter changes state from solid to liquid, what statement can we make about the attractive force between its molecules? A) It decreases. B) It increases. C) It remains constant. D) It varies depending on location.

Which is a set of valid quantum numbers? n = 4, l = 4, m = 4 n = 1, l = - 2, m = 0 n = - 1, l = 0, m = 0 n = 4, l = 3, m = 3

What makes it difficult for a vehicle's driver to judge a motorcycle's speed and distance? The size of the motorcycle The size of the motorcycle rider The size of the vehicle The position of the motorcycle on the road

The current theory of the structure of the Earth, called plate tectonics, tells us what the continents are in constant motion.

A 15 g turntable is covered with a uniform layer of dry ice that has a mass of 9.0 g. The angular speed of the turntable and dry ice is initially 0.75 rad/s. What is the angular speed of the turntable once all the dry ice has evaporated?

Rainwater was collected in water collectors at thirty different sites near an industrial basin and the amount of acidity (pH level) was measured. The mean and standard deviation of the values are 4.60 and 1.10 respectively.

A hot air balloon is rising straight up at a constant speed of 7 m/s. when the balloon is 12.0 m/s above the ground, a gun fires a pellet straight up from ground level with an initial speed of 30.0 m/s.

The atmosphere is an). O element O molecule O mixture O compound

What is the velocity of the car, in meters per second, just after it hits a 135-kg deer initially running at 10.5 m/s in the same direction? Assume the deer remains on the car.