Which symbol is used to show vector quantities

In an atomic model that includes a nucleus, negative charge is A. concentrated in the center of an atom. B. spread evenly throughout the nucleus. C. concentrated at multiple sites in the nucleus. D. located in the space outside the nucleus.

A sound wave with a power of 8.8 * 10^-4 W leaves a speaker and passes through section A, which has an area of 5.0 m^2 what is the intensity of sound in this area? 1.8*10^-4, 1.8*10^-6, 1.6*10^-4 1.6*10^-6

Explain the energy conversions that take place during combustion?

The frequency of the lowest sound that the normal human ear can perceive ranges between 16 and 20 hertz. a. True b. False

What is the force exerted by a solid surface that opposes gravity?

Bats use a process called echolocation to find their food. This involves giving out sound waves that hit possible prey or food. When the waves hit an object, they bounce back to the bat, allowing the bat to locate its prey.

What occurs during the Fall and Spring Equinoxes? * Shortest days of the year Longest days of the year Equal duration of day/night Eclipses

6. How did a change in voltage affect the use of an electromagnet?

How long does it take for mars to rotate on its axis

What is the recommended daily dosage of flouride for a child over three years of age living in an area where drinking water is free fluoride