<span>The exosphere, which is the outermost layer.</span>
Answer:
The net force is zero, so the acceleration is zero
Explanation:
Newton's second law states that the acceleration of an object is proportional to the net force applied to it, according to the equation:
(1)
where
is the net force on the object
m is the mass of the object
a is its acceleration
In this problem, we have a sled acted upon two forces, . So the net force on the sled is
(2)
however, we are told that the two forces are equal in magnitude but in opposite directions, so
So, eq.(2) becomes
and so eq.(1) becomes
which means
so the acceleration of the sled is zero, and if the sled was at rest, it will not move.
I think it's D)!!!!!!!!!!
Answer: 65000 × (0.08 × 200 × 0.004) ÷ (800 × 300) = .0
Explanation: .08 × 200 = 16
65000 × (16 × 0.004) ÷ (800 × 300)
16 × .004 = .064
65000 × (.064) ÷ (800 × 300)
65000 × .064 ÷ (800 × 300)
65000 × .064 = 4160
4160 ÷ (800 × 300)
800 × 300 = 240000
4160 ÷ (240000)
4160 ÷ 240000
4160 ÷ 240000 = .01733333333333333
.01733333333333333
Round .01733333333333333 → .00[[]] (Sig Figs: 1)
None of the choices is an appropriate response.
There's no such thing as the temperature of a molecule. Temperature and
pressure are both outside-world manifestations of the energy the molecules
have. But on the molecular level, what it is is the kinetic energy with which
they're all scurrying around.
When the fuel/air mixture is compressed during the compression stroke,
the temperature is raised to the flash point of the mixture. The work done
during the compression pumps energy into the molecules, their kinetic
energy increases, and they begin scurrying around fast enough so that
when they collide, they're able to stick together, form a new molecule,
and release some of their kinetic energy in the form of heat.