Why is understanding the concept of forces, friction and gravity important?

Bohr improved upon Dalton's atomic theory. True Or False?

A ball of mass 0.10 kg moving at a speed of 3.0 m/s collides with a wall and bounces directly back with the same speed. If the ball was in contact with the wall for 0.

When a charge is discharged to the earth, we call it?

You are an evolutionary biologist studying a population of bats in the rain forest in Brazil. Most of the population possesses moderate length wings, although some individuals have long wings and some individuals have short wings.

In official statistics, crime is which of the following? Over-reported Exact Under-reported Accurate I think it is Over reported but not sure ...

Why do atoms move at different speeds depending on wether they are liquids or solids

What are the arrangement of resistors in series

A cell provides 6 V to an LDR. The current through this LDR is measured and is found to be 3 A. What is the resistance of the LDR?

A car travels along eastward with a constant velocity. the magnitude of the acceleration of the car is

What is the weight of a 65 kg astronaut on mars?