Well, one can take 13 and subtract 56 which is -43.
One can also add 56 to 13 to equal 69.
C is the answer.
If a tennis player does not swing through, meaning they stop swinging the moment they make contact with the ball, they would lose the majority of their power. <em>The momentum that they had built up during the swing is lost the moment they stop swinging</em>, meaning that the ball is hit with a low amount of power.
<em>If the tennis player swings through the whole time they hit the ball, then they keep their momentum as they hit the ball.</em> There is a much higher power level when swinging through than if you were to stop your swing when you hit the ball.
Answer:
The velocity of the one thrown up will be the same as the second one
Explanation:
They will fall and hit the ground at the same time although they have the same velocity because object one although has double height it has initial velocity of zero
Answer:
The electron is 5.88 m far from origin when it momentarily stops.
Explanation:
The position of electron on x-axis is given by the equation:
x = 16 t m __________ eqn(1)
The speed of particle can be found out by taking derivative of "x" with respect to "t"
V = dx/dt = 16[-t + ]
V = 16(1 - t)
Now, when the electron stops, its velocity becomes zero.
V = 0 = 16(1 - t)
(1 - t) = 0
<u>Either</u>: = 0
-t = ln(0)
t = infinity (Since, time can not be infinite, thus this answer is rejected)
<u>Or</u>: 1 - t = 0
<u>t = 1 sec</u>
Therefore, at t= 1 sec, the electron will stop momentarily.
Using t = 1 sec in eqn (1), we find the position of electron.
x = 16(1) m
<u>x = 5.88 m</u>
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Heat = mass CH3OH x spht CH3OH x delta T
<span>= (50 g)(2.51 J/g K)(40 K) = 5020 J </span>
<span>Note that delta T is the same for K as for C.</span>