A 0.015-kg ball is shot from the plunger of a pinball machine. because of a centripetal force of 0.028 n, the ball fol - lows a circular arc whose radius is 0.25 m. what is the speed of the ball?

According to Newton's thirdlaw, every action has an equal and opposite reaction. When a comb is charged and held near small pieces of paper, the comb exerts an electric force on the paper pieces and pulls them toward it.

Sound travels at 340 m/s in dry air at room temperature. What is the wavelength of sound waves with a frequency of 220 Hz under those conditions?

Explain nuclear fusion briefly

Where do groundwater and runoff usually end up?

Is a glacier nothing more than a huge mineral flowing downhill? (Earth & Space)

What countries will see the solar eclipse?

Water is a compound. O A. True B. False

How do air quality scientists ensure the air is cleaned? What steps do they take?

Is a mirrors surface opaque or transparent or translucent?

Sound waves can combine to become bigger or smaller true or false