A person rubs her hands together and they heat up

• kinetic energy

• light energy

• sound energy

• electrical energy

• chemical energy

• heat energy

(multiple choice)

If a box weighing 520 N is hung from a spring whose constant is 650 N/m, how many centimeters will the spring stretch?

The simplest atomic nucleus in nature is molecular formula of hydrogen, which consists of a single proton. Individual protons have charge and can be thought of as small spinning spheres.

The wavelengths for visible light rays correspond to which of these options A. About the size of a pen B. About the size of a virus or large molecule C. About the size of an amoeba D. Smaller than an atom E. About the size of a football field

A tall, cylindrical chimney falls over when its base is ruptured. Treat the chimney as a thin rod of length 58.8 m. At the instant it makes an angle of 30.

When an element is heated in a bunsen burner flame, the resulting color of the flame changes can be used to identify the element.

This is the body of law that codifies what a state defines as legal and/or illegal as well as the punishments for the violations of the laws.

Five workers from the same factory developed angiosarcoma, a rare cancer of the veins and arteries. Which part of the scientific method is this? Group of answer choices conclusion experiment observation none of these hypothesis

Fill in the word that completes each statement. Current cannot flow through a circuit when the switch is Current flows through a circuit and all of the bulbs are lit only when the switch is

Metallic bonds are important to how paperclips are both made and used

A motorbike travels 45 miles in 15 minutes what is its speed