Answer:
The mass of the bullet is much greater than the mass of the rifle.
Explanation:
-Emily has a mass greater than the mass of the rifle.
-By Newton's 3rd Law, the gun only moves back in proportion to it's mass.
-This greater mass acts as a shock absorber to the resulting recoil force.
-Due to Emily's greater mass, she'll only experience a force equal to the mass of the bullet which is not enough to make her have the same acceleration as the bullet.
The pitch of the sound of the car will appear to be <span>lower than the pitch of the car next to you</span>
because that is the right equation
Calculate them and you will know why the correct answer is D
I'm pretty sure a violin produces a higher-pitched sound. I play the violin and it's pretty loud. (Hope this helps)
The correct word to fill in the blank is:
<u>eccentric </u>
<u>
</u>Basing from the force-velocity curve, there are 2 muscle
actions, the concentric (shortening) and eccentric (lengthening). In eccentric
or lengthening muscle actions, force is high when the velocity is high. This is
opposite to concentric or shortening muscle actions, force is low when the
velocity is high. This means that in strength-gaining activities, the speed of
exercise should be slow during contraction, and it should be high when there is
expansion.