All three have the same current, so that is not a factor. Wattage (power) is E*I or i^2 R. The higher the resistance, the more power dissipated. The answer is R3 because it has the highest resistance.
R3 <<<< ===== answer.
The substance which is a liquid fuel used in rocket engines is liquid oxygen. The correct answer is A.
The first thing we need to do is figure out what equation to use. We will use the following kinematic equation...
Δx = (final velocity + initial velocity) x time / 2
We know that the car accelerates from rest, so initial velocity = 0 m/s
We also know final velocity = 20 m/s and time = 12s
Now we just need to plug everything in.
Δx = (20 x 12)/2 = 120 meters
X=.5(a)t^2 can be used: 2.5m=.5(g)(1), g=5m/s^2.
Answer:
A. 
B. rev=10.79rev
Explanation:
A.
500rpm
the time is about 2.60s knowing the acceleration is:
so:
B.
The CD stop so the final velocity is vf=0 so:
Total revolutions:
