The moon orbits Earth approximately once a month.

True

False

Which data from ocean rocks showed seafloor spreading and convinced scientists the theory of plate tectonics was valid? A. density studies B. paleomagnetism C. ocean salinity studies D. seamount origins

What property of a solution causes an acid-base indicator to change to different colors? different temperature different amounts of surface tension different levels of hydrogen bonding different concentrations of hydronium ion

A freight car moves along a frictionless level railroad track at constant speed. The freight car is open on the top. A large load of sand is suddenly dumped into the freight car.

The gauge pressure for the air in a balloon equals 1.01 x 10^5 Pa. If atmospheric pressure is equal to 1.01 x 10^5 Pa, what is the absolute pressure of the air inside the balloon? a. 0 Pa b. 5.05 x 10^4 Pa c. 1.01 x 10^5 Pa d. 2.02 x 10^5 Pa

How could you show that sound waves are caused by vibrations?

Not all energy sources derive their energy from the sun. Choose the three from the list below that derive their energy from sources other than the sun. chemical heat light geothermal nuclear tidal

Suppose your car is equipped with tire pressure monitoring system (TPMS) and the tire pressure is 34.0 psi on a 98F day in california. You decided to take a road trp to Alaska where the temperature drops to 20 F.

Which sound would be loudest? O A. a wave with an amplitude of 1.0 OB. a wave with an amplitude of 0.1 OC. a wave with an amplitude of 0.5 OD. a wave with an amplitude of O

How much work is done when a 4.0-newton box is carried horizontally a distance of 2.0 meters at a constant velocity?

You push a shopping cart filled with groceries (total mass = 20 kg) by applying a force to the cart 30° from the horizontal. If the force you apply has a magnitude of 86 N, what is the cart's acceleration? Assume negligible friction.