Anything that has mass and takes up space is called:

a. heavy

b. matter

c. proportion

d. structure

You can hear someone around the corner before you can see them due to reflection, diffraction, refraction, or absorption?

How are scientific methods used to answer a question?

A cyclist accelerates from 0 meters per second to 8 meters per second in 3 seconds. What is his acceleration? Is his acceleration higher than that of a car accelerates from 0 to 30 meters per second in 8 seconds

Compare contrast plant and animal cells

6 (8n - 1) = - 6 + 5n

When a bat uses echolocation to determine the distance to an insect, it sends out a sound wave and waits to see how long the sound takes to echo back. Suppose now that a bat hears its echo 0.06 LaTeX: ss after it emitted the sound.

An exhausted bicyclist pedals somewhat erratically when exercising on a static bicycle. The angular velocity of the wheels follows the equation? (t) = at? bsin (ct) fort?0, where t represents time (measured in seconds), a = 0.500 rad/s2, b = 0.

This boy uses a force to lift a heavy rock. (He is carrying it.) What can the boy do if he wants to lift the same rock more quickly? A. use greater upward force B. use greater downward force C. decrease the force of gravity D.

The difference in electronegativity values between H and O is 1.4. What type of bond will these elements form?

True or false. when light passes from one medium to another the speed changes.