As long as the net force on a falling object is not zero, the object will ...

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A battery powers a circuit for a small noisy fan. The fan's motor gets warm as it turns. What energy transformations are taking place?

An object is moving across a surface, but it does not gain or lose speed. Which best describes the object's force? The net force is positive. The net force is zero. The positive force is greater than the negative force.

What happens if you touched the knob of a positively charged electroscope

A plastic spring with spring constant 850 N/m has a relaxed length of 0.100 m. The spring is positioned vertically on a table, and a charged plastic 1.00-kg sphere is placed on the top end of the spring.

Which statement best describes the motion of an object that is being subjected to two forces of equal magnitude in opposite directions?

A small rock remains at rest in outer space while an astronaut pushes horizontally on it with a force of 20 N. Which of the following must be true? A. There is another horizontal force acting on the rock. B.

If an igneous rock has very large crystals of minerals that you can see when looking at it, which type of igneous rock is it

You have a 60-foot roll of fencing and a large field. You want to make two paddocks by continuing the fencing down the middle of a rectangular enclosure. What are the dimensions of the largest such enclosure you can make?

Crystallization is a separation technique used to produce rock candy from a sugar solution. true or false

A car traveling in a straight line has a velocity of 3.79 m/s at some instant. After 5.4 s, its velocity is 11.9 m/s. What is its average acceleration in this time interval? Answer in units of m/s 2