Carbon-14 has a half-life of 5730 years after how many half lives will 120 g of carbon-14 decay to 15 g

A. One

B. Two

C. Three

D. Four

The components of a 15 meter per second velocity at an angle of 60 degres above the horizontal

Two satellites of equal mass are orbiting the planet Mars. Satellite B is closer to Mars than Satellite A. How does the gravitational pull of Mars affect each of these satellites?

A ball is falling after rolling off a tall roof. The ball has what type of energy.

How many miles is the moon from the earth

The measured mass of a body is found to be 110g. The length is measured by a meter scale. Actual mass and length of the body are 100 g and 10 cm. Find the percentage error in the calculation of density.

Which defintion of heat is most scientifically accurate

What is the name of the effect that causes water to travel at an angle to trade winds?

Two books with different masses fall off the same bookshelf. As they fall, which has more kinetic energy and why

Which of the following is an example of convection? a a hot object transferring heat to a cooler one b the rays of the Sun warming the earth c a hot oven warming the air around it d hot air rising and cooler air falling

Bob drove from home to work at 60 mph. after work the traffic was? heavier, and he drove home at 50 mph. his driving time to and from work was 1 hour and 28 minutes. how far does he live from his? job?