A converging lens will cause parallel rays of light to
A. Bend to meet at the focal point of the lens.
B. Remain parallel
C. Bend as though coming from the focal point of the lens.
D. Scatter in random directions.
Ans: A. Bend to meet at the focal point of the lens.
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A mass src="https://sciemce.com/media/4/f08bd0705123381334.png" class="w-image" />?
is connected by a light string that passes over a pulley of mass M to a mass 
as shown in the figure. Both masses move vertically and there is no slippage between the string and the pulley. The pulley has a radius of 30.0 cm and a moment of inertia of 
If 
is 4.00 kg, 
is 3.00 kg and M is 6.00 kg, then what is the tension in the string that is attached to
A. 36.2 N
B. 44.6 N
C. 58.2 N
D. 60.6 N
E. 74.5 N
Radar observations made by Cassini have revealed the surface of Titan to have lakes of _______________ in its polar regions
Fill in the blank(s) with correct word
The magnetic field going through a stationary circular loop increases from zero to 5 T in a certain time t. The induced current in the loop will depend on the radius of the loop, r, the resistance of the loop, R, and the time, t. If two of these stay constant, the induced current can be directly proportional to
a. t. b. r. c. R. d. none of these
What produces the coronal gas?
What will be an ideal response?