From the formula for Electric Power, P = IV, P = V²/R
So the 100W compared to the 50W.
From P = IV. From the equation there is a direct relationship between P and I. More Power P means more Current, I.
From P = V²/R. From the equation, there is an inverse relationship
between P and R. Therefore more P means less R.
So from these assertions, the answer is:
(1) less resistance and draws more current
Answer:
work done on desk = m g h = 105 * 9.81 * 2.46 = 2534 Joules
Explanation:
so work in = 2534 / 0.875 = 2896 Joules
that is your 648 times distance your hand moved holding the rope
2896 = 648 * x
4.47 meters
I think maybe a typo, 648 N is too big, maybe 64.8 ? Any block and tackle system does better than that.
Answer:
Explanation:
Assuming the we have to find ratio maximum forces on the mass in each case
we know that in a spring mass system
F= Kx
K= spring constant
x= spring displacement
Case 1:
case 2:
therefore, 
Answer:
1) 10 m/s 2) 14.1 m/s 3) 6.7 m 4) 11.25 m 5) 4.5 m/s 6) 12 joules
Explanation:
Friction between two flat surfaces is distinguished as being kinetic friction.
