A coin is 12 cm in front of a convex lens with focal length of magnitude 4.0 cm. Where is the image?
A) 8.0 cm behind the lens
B) 6.0 cm in front of the lens
C) 6.0 cm behind the lens
D) 4.0 cm in front of the lens
C
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Identical particles are placed at the 50-cm and 80-cm marks on a meter stick of negligible mass. This rigid body is then mounted so as to rotate freely about a pivot at the 0-cm mark on the meter stick. If this body is released from rest in a horizontal position, what is the angular speed of the meter stick as it swings through its lowest position?
A. 4.2 rad/s B. 5.4 rad/s C. 4.6 rad/s D. 5.0 rad/s E. 1.7 rad/s
A waffle cone has a diameter of 2.5 inches and is 5.5 inches tall. What is the volume of the waffle cone in cubic centimeters?
A) 58 cubic cm B) 150 cubic cm C) 240 cubic cm D) 440 cubic cm E) 620 cubic cm
If Venus' clouds block much of the sunlight before it reaches the surface, why is the planet so hot?
What will be an ideal response?
A 60-kg skier starts from rest from the top of a 50-m high slope. If the work done by friction is -6.0 kJ, what is the speed of the skier on reaching the bottom of the slope?
A) 31 m/s B) 24 m/s C) 17 m/s D) 28 m/s