For a liquid to be useful in a thermometer, it should ?
a. flow very slowly from one place to the next
b. expand when it warms and contract when it cools
c. undergo a change of state within a narrow range of temperatures
d. adhere tightly to the material that makes up its container, such as glass or plastic

B

Explanation:

A: The speed in which the liquid moves is irrelevant, as long as it moves.

B: This will show the temperature: expansion -> bigger number -> hotter, and vise versa. You may already know that mercury expands and contracts with the change in temperature, without changing state. That is why the first thermometers used mercury.

C: No change of state is needed in a thermometer, and may actually cause it to break.

D: Adhering to a surface will cause the liquid to be unable to move, which shouldn't happen.

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.

the answer should be in the picture.