Answer:
5 m/s 2
To
get the acceleration of a car, you need to know first the difference in the
change in speed of a car then divided by time of the change. This can be
expressed as acceleration =
(change in speed) divided by (time for the change). So 30 m/s minus 10 m/s is
equal to 20 m/s divided by 4 seconds and the quotient is 5 m/s2.
Answer:
Explanation:
We will use the relationship between impulse and momentum.
We are considering the change of momentum of Superman at the moment of collision.
This force is distributed throughout Kal-El’s chest. So, the average force is
Answer:i think they do i dont understand your question it does not make sence
Explanation:
The answer is A) 1000 J
According to the law of conservation of energy, the total energy before an action is always equal to the total energy after the action.
So that is, the total energy is 8000J found as potential energy, 7000J has transformed into kinetic energy, then the thermal energy should be the remaining 1000J.
Hope this helps.
Answer:
E) ΔP = F * R
Explanation:
Let's look at Ohm's law:
ΔV = I * R
where I is the electric current, ΔV is the potential difference and R is the resistance.
We can derive the relationship between pressure gradient (ΔP), blood flow (F), and resistance (R) by analogy, getting:
ΔP = F * R
or
F = ΔP/R
This means that the flow is proportional to the pressure difference and inversely proportional to the resistance.