Why do you think that the speeds of comets increase as they near the sun

1) Which of the following explains why a bicycle uses a gear? A.) The gear increases the effort force needed. B.) The gear increases resistance force. C.) The gear decreases effort force. D.) The gear decreases resistance force.

Meg walks with a velocity of 0.9 m/s west. She does so while riding on a train that is traveling with a velocity of 2.7 m/s east. What is Megs velocity? A. 3.6 m/s west B. 1.8 m/s west C. 1.8 m/s east D. 3.6 m/s east

A car with a mass of 1,324 kilograms, traveling at a speed of 20 meters/second, crashes into a wall and stops. What is the kinetic energy after this perfectly inelastic collision? A. 0.0 joules B. 3.2 * 103 joules C. 1.0 * 104 joules D. 1.

The car's motion can be divided into three different stages: its motion before the driver realizes he's late, its motion after the driver hits the gas (but before he sees the police car), and its motion after the driver sees the police car.

Why can even a small injury to the cornea have a major effect on vision?

In equation y = mx means what

Sea anemones can produce completely new organisms by regeneration. Are these new organisms genetically identical to the parents? Why or why not

What are 3 types of muscle tissue still?

Which of the following is a true statement? * Waves do not transport matter through which they travel Waves can transport matter through solids, liquids and gases, but not through empty space.

What happens to the amplitude of a sound wave when energy transfer is increased? A As the transfer of energy is increased, the amplitude increases causing the sound to get louder.