If one of the pair of Magdeburg hemispheres were fastened to a strong tree, the force needed by a single party to pull them apart would be
A) half as much.
B) the same.
C) twice as much.
D) none of the above
Answer: B
You might also like to view...
The appearance of an aurora indicates that
A. the planet is being bombarded by small meteors. B. there is intelligent life on the planet producing the aurora from below. C. there is a lot of lightning discharges in the planet's atmosphere. D. the planet has a magnetic field.
A 100-W light bulb is in a socket supplied with 120 V. What is the current in the bulb?
a. 7200 A c. 1.4 A b. 0.83 A d. 0.50 A
White light is incident normally on a thin soap film having an index of refraction of 1.34
It reflects with an interference maximum at 684 nm and an interference minimum at 570 nm with no minima between those two values. The film has air on both sides of it. What is the thickness of the soap film? A) 766 nm B) 627 nm C) 638 nm D) 894 nm E) 510 nm
The energy stored in a pile driver is an example of __________ energy
Fill in the blank(s) with correct word