In experiment involving a pithball electroscope, what causes the pithball to move?

What is the relationship between the electric force and each one of the charges?

why might it be less dangerous to wear no sunglasses than to wear sunglasses that do not block UV light

In 2 seconds, a ball travels 100 cm. What is the average speed of the ball?

What are two ways that some solutes form ions in solution?

Collisions between galaxies are thought to:

A high-speed train travels 480 km from Paris to Grenoble, France, at an average speed of 180 km/h. How long will it take to reach Grenoble? A. 0.66 h B. 3.8 h C. 0.38 h D. 2.7 h

Water has a specific heat of 4.186 J/g°C, and ethanol has a specific heat of 2.450 J/g°C. Based on this information, which best compares water and ethanol? It requires more heat to raise the temperature of a gram of ethanol by 1°C.

Try it A volleyball player's hand applies a 39 N force while in contact with a volleyball for 2 seconds. What is the impulse on the ball?

Muscular strength is defined as:

Which piece of playground equipment could be used to model and explain the movement of matter in the biosphere