The top of the cylinder head is sealed by the
a. valve cover.
b. oil retainer.
c. oil pan.
d. front cover.

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.

Ineed the answer to question 1 , i’m desperate

How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c