Today, Earth's magnetic field is losing approximately 7 percent of its strength every 100 years. If the

strength of Earth's magnetic field at its surface is 0.5 gauss today, what will it be 100 years from now?

If a boulder has a mass of 50 kg and a potential energy of 490 j what is the height of the boulder

A child throws a ball with an initial speed of 8.00 m/s at an angle of 40.0° above the horizontal. The ball leaves her hand 1.00 m above the ground and experience negligible air resistance.

A skateboarder is accelerating forward.

Which of the following is a natural resource that is used to produce margarine? butter water hydrogenated oil plants

How does quantum mechanics relate to the universe?

Choose all the answers that apply. To qualify as a planet, a celestial object must: have an irregular shape revolve around the sun orbit in a clear area have enough gravity to have a spherical shape have a satellite

Oxygen makes up the largest part of living cells at 65%. What is the percentage of the second-most abundant element in living cells?

Acceleration is defined as the rate of change for which of the following? A. time B. velocity C. position D. displacement

What are 3 characteristics of a tornado?

Which list shows the element symbols of the 6 biological elements?