Which of Kepler's laws states that planets sweep areas in equal times?

a. first

b. second

c. third

d. law of universal gravitation

Acceleration is measured in m/s/s (meters per second squared). True or False

If a 6 kilogram box is moved from the floor to a storage compartment 2 meters above the floor by how many joules does it's gravitational potential energy change

Nuclear reactors do not create energy, instead they convert nuclear energy into?

Currents in the ocean are caused by differences in water density. Colder, denser water tends to A. rise and flow from west to east. B. sink and flow from the equator to polar regions. C. rise and flow from east to west. D.

The atomsphere is composed of several gas which is present in the largest quantity is A. carbon dioxide B. nitrogen C. oxygen D. water vapor

A boulder on top of a cliff has a potential energy of 12400J. How high above is the boulder?

If the graph represents speed what is measured on the x and y axes

It is difficult to lift a heavy stone than the lighter one on the earth, why?

The vapor pressure of ethanol at 25 degrees C is 7.83 kPa. Calculate the vapor pressure in atm. Round answer to 3 significant digits.

According to Newton's second law of motion acceleration or an object depends upon the ___ of the object and the ___ Acting on it. I'm confused on what the blanks are. I can't find them.