Force equals blank times acceleration

Why does cold water sink?

What is the weight of a text book whose mass is 2.4 kg measured on the moon? The gravitational acceleration on the moon is approximately 1/6 that on the earth.

On his way off to college, Russell drags his suitcase 19 m from the door of his house to the car at a constant speed with a horizontal force of 89 N. How much work does Russell do to on the suitcase to overcome friction? Answer to the nearest Joule.

Describe the two main ways that energy travels through the Sun.

Stars combine Hydrogen to make Helium during nuclear fusion. Living things are made of heavier elements like Carbon, Oxygen, Iron, and Calcium. How did these elements form?

How are molecules in a neutral state different from ions?

What is a hypothesis for why mitochondrion has separate dna from the nuclease?

An airplane flies 1350km in 2 1/4 hours. What is its average speed in kilometers per hour?

A projectile is launched over a horizontal surface in such a manner that its maximum height is 3/5 of its horizontal range. Determine the launch angle.

Two identical capacitors are arranged in a circuit. What is the ratio of the equivalent capacitance of the circuit when the capacitors are in series to that when they are in parallel?