Answer:
a
Explanation:
<em>a_c</em><em> </em><em>=</em><em> </em><em>v</em><em>_t</em><em>^</em><em>2</em><em>/</em><em>r</em>
<em>a_c</em><em> </em><em>=</em><em> </em>(0.5)^2/0.03
<em>a_c</em><em> </em><em>=</em><em> </em>8.33 m/s^2
The answer to this question is the "Gay Lussac's Law". This law stated that the pressure and temperature is directly related to each other such that when the pressure increases, the temperature will also increase and vise versa, in short they are directly related. This explanation can be expressed as P1 / T1 = P2 / T2.
Answer: Meteors
Explanation:
The moon does not have an atmosphere. Thus, it does not have weather patterns like on Earth. No winds blow on it unlike on Earth where wind and water cause soil erosion.
On moon, high speed space dust and rocks of all sizes hit and cause the erosion of rocks. In the absence of atmosphere, these space rocks are not burnt away but hit the surface creating craters.
500 n
Since they are pulling the same direction, all you have to do is add them together
(a) Let's convert the final speed of the car in m/s:
The kinetic energy of the car at t=19 s is
(b) The average power delivered by the engine of the car during the 19 s is equal to the work done by the engine divided by the time interval:
But the work done is equal to the increase in kinetic energy of the car, and since its initial kinetic energy is zero (because the car starts from rest), this translates into
(c) The instantaneous power is given by
where F is the force exerted by the engine, equal to F=ma.
So we need to find the acceleration first:
And the problem says this acceleration is constant during the motion, so now we can calculate the instantaneous power at t=19 s: