A nail is hit with a hammer. Which type of contact force has been applied?

A.

spring force

B.

impact force

C.

friction force

D.

tension force

What a relationship between flame color and chemical name.

Which of the following describes how a microwave heats food

Explain rate of decay of a material?

How do tornadoes end

Kirchhoff's laws are (select 2) : Group of answer choices 1. The sum of all currents around a loop is zero 2. The current weakens as you move through each circuit element 3. The voltage into a junction equals to voltage out of the junction 4.

Order the colors of the rainbow starting with the color that is bent the least to the color that is bent the most (when it passes through a prism). Question 1 options: yellow blue indigo orange green red violet

Find the unit vector that has the same direction as the vector v = _12j

Why isn't the size of something considered a physical property?

A hunter is standing on flat ground between two vertical cliffs that are directly opposite one another. He is closer to one cliff than the other. He fires a gun and, after a while, hears three echoes. The second echo arrives 1.

A car going at 30 m/s undergoes an acceleration of 2 m / (s^2) for 4 seconds. how far did it travel while accelerating?