The near point of a farsighted person is 100 cm. She places reading glasses close to her eye, and with them she can comfortably read a newspaper at a distance of 25 cm. What lens power is required?
A) +2.5 D
B) +3.0 D
C) -2.0 D
D) +3.2 D
E) -2.5 D
B
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A rifle sight is set so that you will hit a target at 100m. If, instead, you wish to hit a target closer than 100m, should you aim high or low?
A. You should aim high, since the bullet will drop due to the effect of gravity B. You should aim directly at the target, if the rifle sight is set, it will aim true no matter the distance to the target C. You should aim low, since the bullet will not drop as much as expected due to the effect of gravity
A 2.00 kg pendulum bob on a string 2.00 m long, is released with a velocity of 1.50 m/s when the support string makes an angle of 30.0 degrees with the vertical. What is the tangential acceleration of the bob at the highest point of its motion?
A. 5.33 
B. 5.77
C. 6.25
D. 7.00
E. 7.25
RC Circuits: A 1.0-?F capacitor is charged until it acquires a potential difference of 900.0 V across its plates, and then the emf source is removed. If the capacitor is then discharged through a 500.0-k? resistance, what is the voltage drop across the capacitor 9.0 ms after beginning the discharge?
A. 880 V B. 920 V C. 16 V D. -16 V
Which of the following is NOT true about adding comment features to a website?
A. Do not require users to create an account before posting comments. B. Comments help a website creator gauge interest in a post or article. C. To add a comments feature, you can add a premade script to your website code. D. Spam often appears in comments.