As an object increases in altitude, its mass:

b. decreases

c. remains the same

What is the half life of a radioactive isotope that decreased to one-fourth its original amount in 100 year

What is gravity pull on earth.

Dust settling out of the air chemical change or physical change

In a hydrogen atom, the electron in orbit around the proton feels an attractive force of about 7.45 * 10-8 N. If the radius of the orbit is 5.89 * 10-11 m, what is the frequency? Answer in units of rev/s

The instrument which is commonly used to measure the intensity of radioactivity is called a

The force of attraction exerted by non moving static charges in each other A) electrostatic force B) gravitational force C) electromagnetic force D) attractive force

Is the planet Jupiter magnetic. Yes or no

The number of spiders in the house and the outside air temperature have an indirect relationship. What will happen to the number of spiders in the house as the outside air temperature decreases?

A 1200 kg car is moving at 5.0 m/s east. it strikes an 1800 kg car at rest. the cars have an elastic collision and move in the east or west direction. the velocity of the 1200 kg car after the collision is:

Describe the movement of particles when water vapor touching cold surface