Answer:
7. Net constant force down the ramp
Explanation:
After the car is released and starts moving up the ramp, the only force that is applied on the car is weight because of the gravity, we were told that the friction force is neglected. the force because of the weight is given by:

where θ is the angle of the ramp.
as you can see those values won't change, so the force remains constant down the ramp.
Answer:
<h2>1.67 m/s²</h2>
Explanation:
The car’s acceleration can be found by using the formula

where
v is the final velocity
u is the initial velocity
t is the time taken
a is the acceleration
From the question we have

We have the final answer as
<h3>1.67 m/s²</h3>
Hope this helps you
Macromolecule polymers are assembled by the connecting of monomers. An -OH group is detached from one monomer and a hydrogen atom is detached from an additional in a procedure named dehydration synthesis in the monomers bond. For every subunit supplementary to a macromolecule in which one water molecule is detached. Macromolecule polymers are broken down by breaking bonds among subunits. This procedure is named hydrolysis and is the opposite of dehydration. During hydrolysis the hydrogen atom is supplementary to one monomer and a hydroxyl cluster to the other and by breaking the covalent bond in the middle of the monomers.
Answer:
8 Newton
Explanation:
Weight = force
then, given,
weight= 0.495 kg
force= 7.28 N
Now,
the total force acting on the bird = (Weight + force)N
=(0.495 + 7.28)N
=8N
hence, the total force acting on the bird is 8 N.
The correct answer is<span> measure the distance to a star.
It is</span> the semi-angle of inclination between two sight-lines to the star, as observed when the Earth is on opposite sides of the Sun in its orbit. This is used to measure the distance to closer stars.