If a force of 20 N is applied to an object with a mass of 3 kg, the object will accelerate at m/s2

When you hold a small amount of sodium chloride in a flame, you observe that the flame is bright yellow. What can you do to be sure that the color is due to sodium and not chlorine?

If water is at 50 * C and energy is removed from the water until it is at - 10 * C (while maintain a constant pressure of 760 mm), describe the phase change of the water.

What fraction of Earth's volume is taken up by the core?

An atom of silicon has a mass number of 28 and an atomic number of 14. How can you determine how many protons and how many neutrons are in this atom?

Austin performed an experiment. He put 100mL of vegetable oil (density 0.9 g/ml) in a graduated cylinder. He put a 100g mass of an unknown metal in to the oil and it sank while displacing 11 mL of oil.

What property of matter is momentum related to

What is one way to increase the amplitude of a wave in a medium

A net force of 3000 N is accelerating a 1200 kg elevator upward. If the elevator starts from rest, how long will it take to travel up 15 m?

The frequency of a given region of the electromagnetic spectrum ranges from 3 _ 1016 _ 3 _ 1019 hertz. Which type of wave is found in this region?

A student is testing the kinematic equations for uniformly accelerated motion by measuring the time it takes for light-weight plastic balls to fall to the floor from a height of 3 m in the lab. The student predicts the time to fall using g as 9.