What two minerals would be most useful as grains on sandpaper

If the kinetic energy possessed by a man of 50kg is 625J, the speed of man is

What nuclear weapon is the biggest and who currently owns this bomb

Average speed is 5 km per hour what happens if I walk for 30 minutes

Which detail best explains how Esperanza is changing?

What is the unit that you measure Potential Difference in?

What are two ways to change velocity?

What is the main optical element of a refracting telescope?

Two water manometers are connected to a tank of air. One leg of the manometer is open to 100kPa pressure (absolute) while the other leg is subjected to 90kPa. Find the difference in deflection between both manometers, Delta h_a - Delta h_b.

Most geologists believe that the dinosaurs became extinct 65 million years ago when a large comet or asteroid struck the earth, throwing up so much dust that the sun was blocked out for a period of many months. A.

If you drop a silver dollar off a building and it hits the ground in 10 seconds, how fast was the coin going just before it hit?