1. The coefficient of kinetic friction between an object and the surface upon which it is sliding is

0.25. The weight of the object is 20N. What is the force of friction?

A ship sends out a 1200 Hz sound wave, which has a wavelength of 1.2 m in the water. It reflects off the ocean floor and returns to the ship in a total time of 5 seconds. How deep is the ocean at this location?

Why does a round pizza come in a square box? Random questions

Witch statement about polymers is true

A machine does 1500 joules of work in 30 second What is the power of the machine

A cylindrical tank with radius 3 m is being filled with water at a rate of 2 m3/min. how fast is the height of the water increasing?

What warm ocean currents keep the NC coast warm, even if it is winter

White moths were found in huge numbers in the city of Birmingham. These moths could be easily camouflaged by the trees. Because of sudden industrial development, the trees in the city were covered with soot.

What would happen if water could not condense into the atmosphere

How did rutherford's experiment show that thomson's plum pudding model was incorrect?

A car accelerates from 30 m/s to 50 m/s in 2 seconds. Calculate the cars acceleration