A skydiver with mass of 60 kg accelerates to earth at a rate of 9.8 m/s/s due to gravity. What is the force on the skydiver? Explain how you determined the answer and its units.

All valid equations in physics have consistent units. Are all equations that have consistent units valid? a. No. Any equation can be made to have consistent units through unit conversion. b. Yes.

How do the NGSS use Crosscutting Concepts in a new way?

Assuming 70% of Earth's surface is covered in water at an average depth of 2.5 mi, estimate the mass of the water on Earth in Kilograms.

Once a satelite has entered a stable orbit round earth why does it not need fuel?

Justify why does a bird flap its wing to fly higher?

Can rocks be weathered by wind and chemicals in the air

1. if you rub a neutral glass rod with silk, the silk acquires a negative charge. if you rub a neutral glass rob with a rubber rob, the rubber rod acquired a negative charge.

What's a scientific inquiry

Calculate work If force of 50 Newton's and distance is 6 meters.

What heats up hot chocolate faster? milk or water?