Juan is comparing the brightness of two lightbulbs. Which SI unit should he use?

a. Kelvin

b. candela

c. mole

d. meter a or b

Which endocrine gland is responsible for controlling the stress response?

How do radios use the behavior and characteristics of the electromagnetic wave to function?

Which of the following statements are true? 1. Good conductors of electricity have larger conductivity values than insulators. 2. A material that obeys Ohm's law reasonably well is called an ohmic conductor or a linear conductor. 3.

Find a numerical value for rhoearth, the average density of the earth in kilograms per cubic meter. Use 6378km for the radius of the earth, G=6.67*10-11m3 / (kg⋅s2), and a value of g at the surface of 9.80m/s2.

When do mountain formations occur?

Calculate the force required to give 380kg car an acceleration 10m/s square

A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 3.2 s later. If the speed of sound is 340 m/s, how high is the cliff?

If a decision was made to increase agriculture fertilizer application, which would be an example of a negative trade-off based on this decision? A) excessive nutrients B) farm profits increase C) increase crop production D) consumer prices decrease

How are all mobile phones different from fixed telephones in the way that they transmit and receive voice messages?

Can i tank of oxygen gas ever be half empty