Alcohol is less dense than water. If alcohol is used to make a barometer at normal atmospheric pressure, the height of the alcohol column would be
A) less than 10.3 m.
B) 10.3 m.
C) more than 10.3 m.
Answer: C
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What is 56 + (32.00)/(1.2465 + 3.45) written with the correct number of significant figures?
A) 62.8 B) 62.812 C) 62.81 D) 63 E) 62.8123846
Grandfather clocks are designed in a way that the weight at the bottom of the pendulum can be moved up or down by turning a small screw. Suppose you have a grandfather clock at home that runs fast
Should you turn the adjusting screw so as to raise the weight or lower the weight? A) Raise it. B) Lower it. C) It doesn't matter if you raise or lower the weight, as long as you displace it by the right amount. D) It doesn't matter if you raise or lower the weight, as long as you displace it with the correct initial velocity. E) Raising or lowering the weight doesn't help, the screw is there so that you can add or take away weight.
Which of the following are vectors?
(i) your age (ii) your height (iii) acceleration (iv) velocity (v) speed (vi) mass
1.(iii) and (iv) 2.(iii), (iv), and (v) 3.(i), (ii), and (vi) 4.all of theseThe intensity of magnetization divided by the applied magnetic field strength is equal to the magnetic _________.
Fill in the blank(s) with the appropriate word(s).