Dirt is classified as an: a) element b) compound c) heterogeneous mixture d) solution

The gravitational force between two giant lead spheres is 0.010 N when the centers of the spheres are 20 m apart. What is the distance between their centers when the gravitational force between them is 0.160 N?

What are three mechanisms for reproductive isolation? Which Mechanism isolates two populations of similar frogs with different mating calls?

How much of a following distance should you allow between you and the vehicle in front of you when it is raining heavily?

Air contained in a piston-cylinder assembly, initially at 2 bar, 200 K, and a volume of 1 L, undergoes a process to a final state where the pressure is 8 bar and the volume is 2 L. During the process, the pressure-volume relationship is linear.

A 2 N apple is hanging from a branch. What is the action force? A. the net force B. the normal force C. a 2 N upward force D. a 2 N downward force

A rectangular block has dimensions 2.9 cm x 3.5 cm x 10.0 cm. the mass of the block is 615.0 g. what is the volume and density of the block? (answer it with correct numbers of significant figures)

Which of the following are products of cellular respiration? Sunlight Oxygen ATP Water Carbon Dioxide

Do magnetic field lines ever start or end anywhere?

What effect do oceans have on the temperature of coastal areas? A. Ocean breezes warm the coastal land constantly. B. Ocean currents always cool a coastline. C. Ocean winds prevent extremes of temperature on coastal lands. D.

Vf=vi+at solve for t