Need needs to be correct !
1.which of the following objects exerts the greatest gravitational force?

a.
earth

b.
moon

c.
sun

2.if a car is traveling on a flat road at a constant speed of 60 miles per hour, the fricition that is exerted upon the car must be

a.
greater than the force pushing the car forward.

b.
equal to the weight of the car.

c.
greater than the weight of the car.

d.
equal to the force pushing the car forward.

3.forklifts are commonly used in warehouses to move heavy objects. the image above shows a forklift that has just lifted a large crate several feet upward off of a warehouse floor.
in order to lift the crate, the forklift had to apply force that was greater than force of gravity affecting the crate.

a.
an upward; the downward

b.
a downward; the upward

c.
zero; the equal

#1 A #2 B #3 D]

Hope this helps! and have a great day

-MalStar

The answer for number 3 is A just had it in study island and its correct.

Explanation:

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.