Why do I hear a loud sound when I put my ear against the wall and knock

How do you simplify 10 1/2

I speak without a mouth and hear without ears. I have no body, but I come alive with wind. What am I?

Which statement is true according to Newton's first law of motion?

What type of reaction fuels the processes seen here? A) nuclear fusion. B) nuclear fission. C) atomic radiation. D) radioactive decay.

A star ending its life with a mass of four to eight times the Sun's mass is expected to collapse and then undergo a supernova event.

How far can a person run in 15 minutes if he or she runs at an average speed of 16 kilometers / hours?

In the parts that follow select whether the number presented in statement A is greater than, less than, or equal to the number presented in statement B. Be sure to follow all of the rules concerning significant figures. Statement A: 2.

All your cells contain proto-oncogenes, which can change into cancer-causing genes. Why do cells possess such potential time bombs? A. Cells produce proto-oncogenes as a by-product of mitosis. B.

What is the mass of a basketball that is shot with 12N of force at an acceleration of 4m/s2?

Why do metals have similar properties?