\(m \omega^2 r\)
\(\frac{mv^2}{r}\)
\(m \omega r\)
\(\frac{mv^2}{r^2}\)
Correct answer is A
No explanation has been provided for this answer.
A ball falling through a viscous liquid is acted upon by
upthrust only
upthrust and the ball's weight
the ball's weight and viscous force
upthrust, the ball's weight and viscous force
Correct answer is D
No explanation has been provided for this answer.
2V, 1.0A
2V, 4.0A
6V, 0.3a
6V, 3.0a
Correct answer is A
cells in V = voltage of the cell
= 2V
I = \(\frac{v}{R} = \frac{2}{3}\)
= 1A
The diagram above illustrates a waveform. Which of the point on the waveform are in phase?
P and R
R and T
P and T
Q and S
Correct answer is D
No explanation has been provided for this answer.
momentum of the air molecules are increased
volume occupied by the molecules are increased
frequency of collision of the air molecules with the walls of the pump is increased
more air molecules are collidin with one another in the system
Correct answer is C
No explanation has been provided for this answer.
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