950 J of energy is used to heat an unknown mass of copper from 20.0° C to 95.0° C. The specific heat of copper = 0.39 J/(g·°C). What is the mass of the copper?

32.7 g

Explanation:

Q = MC∆T

∆T = 95-20 = 75

C= 0.39

Q= 950J

from first formula

m = Q/c∆T

m = 950/0.39*75

m = 32.47 h

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.