Answer:
e. All of the above are projectile
Explanation:
A projectile is an object with motion, aka a non-zero speed. A cannonball throwing straight up, rolling down a slope, rolling off the edge of a tale, thrown through the air have motion. They all have speed and kinetic energy. Therefore they can all be considered a projectile.
Answer:
A. the Moon has a larger acceleration than Earth, because it has a smaller mass.
Explanation:
A. the Moon has a larger acceleration than Earth, because it has a smaller mass.
According to Newton's second law F=ma, if we solve for a we have that
a=F/m, the smaller the mass the larger the acceleration given the force is the same, in this case the moon has a smaller mass and therefore a larger acceleration
Answer:
W = 307.45 joules
Explanation:
the work done is defined as the product of force applied in the direction of displacement and the displacement.
Use the formula for work directly
(work) = (force) x (displacement)
Work is a scalar quantity and its SI unit is Joule.
W = F x d
F = 71.5 N
d = 4.30 m
W = 71.5 × 4.30
W = 307.45 joules
Yes indeed, that is a true statement. Truer words are seldom written, and I could not agree with you more.
In case you are asking a question, I can kind of see how this might be a question if there is a blank after "... the change in ..." that is to be filled with one or more new words.
If that is the situation, then the blank can be filled with "frequency or wavelength" .
