When a person with a near point at 28 cm uses a certain magnifying glass, it produces an angular magnification of 7.0 with the image very distant. What is the focal length of the lens of this magnifying glass?
A) 2.0 cm
B) 3.0 cm
C) 4.0 cm
D) 5.0 cm
E) 6.0 cm
C
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Weight and g: What would be the weight of a 59.1-kg astronaut on a planet twice as massive as Earth and having twice Earth's radius?
A. 580 N B. 290 N C. 1160 N D. 118 N E. 1200 N
Answer the following statement(s) true (T) or false (F)
1. 
for all vectors 
2. The only way a vector’s magnitude can be zero is if all its components are zero
The projection of circular motion onto a straight line is simple harmonic motion
Indicate whether the statement is true or false
You are designing a generator with a maximum emf 8.0 V. If the generator coil has 200 turns and a cross-sectional area of 0.030 m2, what would be the frequency of the generator in a magnetic field of 0.030 T?
A) 7.1 Hz B) 7.5 Hz C) 8.0 Hz D) 22 Hz E) 44 Hz