A wave has a period of 2 seconds and a wavelength of 4 meters calculate its frequency and speed

What class lever is a 1. Pencil Sharpener 2. Tennis racket 3. Hole puncher 4. Can opener

What is kinetic energy of a 30 kg child running at 7mph

Your friend says your body is made up of more than 99.9999% empty space. What do you think

The electric field 10.0 cm from the surface of a copper ball of radius 5.00 cm is directed toward the ballâs center and has magnitude 9.00/times 10^2~/text{N/C}9.00Ã10 â2 ââ N/C. How much charge is on the surface of the ball?

In what state must matter exist for fusion reactions to take place? ... ?

How big is a wifi pulse signal coming from your router? A) 10 meters B) 15 meters C) 5-10 meters D) 20-30 meters

Imagine you are in a music concert. What different sounds might you hear? How are these sounds made?

Dose aloe Vera grow in the mesa?

A tradesman sharpens a knife by pushing it against the rim of a grindstone. The 35 cm diameter stone is spinning at 200 rpm and has a mass of 28 kg. The coefficient of kinetic friction between the knife and the stone is 0.20.

What is the unit for force we use when calculating F=ma?