What does one calorie measure?
a. he amount of heat required to raise the temperature of 1 gram of water 1 degree celsius
b. amount of mass that contains 1 joule of energy
c. the change in mass that occurs when the temperature of an object changes by 1 degree celsius
d. the change in temperature that results when a sample gains or loses 1 joule of energy the

A

Explanation:

Calorie is a measure of thermal energy, or heat. So A is the only one that works, since, the rest look for mass or change in temperature.

the answer would be 32*f

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27