if a coin and a piece of paper are dropped simultaneously from the same height which of two will touch the ground first? what will happen if they are dropped together in vacuum

Which is not a vector quantity? a. displacement b. velocity c. time d. acceleration

2. Weight is a force from gravity pulling down on any object with mass. True False

8. There are different characteristics for each of the states of matter. Which statement describes a difference between solids and liquids? a. Temperatures can change a solid to a liquid, but cannot change a liquid to a solid, b.

A 5 feet tall man went for swimming in a pool. He saw the depth of water in the pool less than 5 feet. Will he be drowned? Write with reason.

Name at least two limitations of using models in science.

If a pressure gauge measure an increase in 3*10^ (5) Pa on an area of 0.7 m^2, calculate the increase in the force applied to the area?

Which of the following is an example of potential rather than kinetic energy? a. water rushing over Niagara Falls b. a molecule of glucose c. a crawling beetle foraging for food d. light flashes emitted by a firefly

If a force of 15 newtons [N] is applied to a surface and the pressure is measured as 4,000 pascals [Pa], what is the area of the surface in units of square milimeters [mm2 ]?

An engineer has the task of producing an aluminum alloy with a density of 3.0 grams per cubic centimeter. She comes up with the perfect alloy and saves a sample of it. Which mass and volume measurements correspond to this sample? 7 g and 2.

What must be your car's average speed in order to travel 235km in 3.25 hours?