This outer covering is the seed<span> coat. </span>Inside<span> of the </span>seed<span> would be </span>a tiny plant called <span>the embryo. The two large parts of the </span>seed<span> are </span>called<span> the cotyledons. The cotyledons are stored food that the </span>young plant<span> will use while it is growing. Monocots are </span>seeds<span> that have only one cotyledon, such as the corn </span>seed<span>.</span>
You can solve this by using Newton's First Law or Newton's Second Law.
1) Newton's First Law or Inertia Law states that in the abscense of a net force acting over an object, this will not chage its state of movement, i.e it will remain at rest (if it is no moving) or with uniform movement (if the object is moving).
2) Newton's Second Law: Net force = mass * acceleration => acceleration = net force / mass = 0 / mass = 0.
Zero accelerations means rest or uniform movement.
First Law is implicit in Second Law.
answer - d
set up equation
the velocity can be found through the change in kinetic energy
due to the conversation of energy, the change in kinetic energy is the same as the change in potential energy when the height is changed
ΔK =
ΔU = mgΔh
ΔK = ΔU
= mgΔh
= 2gΔh
v =
values
g = 9.8
Δh = 42 - 4.2 = 37.8 m
plug in values
v =
v =
v = 27.2
answer choice D