A 3.5 kg book is sliding on a desk. The coefficient of kinetic friction between surfaces is 0.2. What is the size of the force of friction?

Which piece of evidence contradicts the steady state theory? a. the universe b. the farther a galaxy is from earth, the faster it is moving away from us c. galaxies are moving away from earth d.

What is an organism that relies on other things for food?

If the earth did not rotate global winds would follow what path?

A 5.00 g sample of water vapor, initially at 155°C is cooled at atmospheric pressure, producing ice at - 55°C. Calculate the amount of heat energy lost by the water sample in this process, in kJ.

Which of the following has a greater gravitational pull on the Earth? 1000 kilogram hippopotamus 100 kilogram human 0.1 kilogram mouse 1 kilogram cat

Acceleration increases over time once a force is applied to the object. Given a force of 10.0 Newtons, which mass will have the greatest acceleration?

The transfer of energy between two objects by electromagnetic waves is called

What is the unit of k (spring constant) in SI system?

The teacher prepares 2.50 liters (L) of a salt solution for a class experiment. How many quarts (qt) are in 2.50 L? (1 quart = 0.943 liters)

What is a scavenger give some examples