A cart of mass m is moving with speed v. Is it possible for the cart's kinetic energy or the magnitude of its momentum to be larger after it collides with something?
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Wood does not have magnetic properties because it contains no
A) iron or other metals. B) magnetic domains. C) moving electrons. D) none of the above
Total lunar eclipses always occur
a. at the time of new Moon. b. at the time of full Moon. c. during either equinox. d. during either solstice. e. at the time that the Sun is directly overhead.
If you view a hot star through a cool cloud of gas, what sort of spectrum will you see?
A) water B) continuous C) absorption D) emission E) No spectrum is visible.
A simply supported beam with proportional loading (P 5 4.1 kN) has span length L 5 5 m. Load P is 1.2 m from support A and load 2P is 1.5 m from support B. The bending moment just left of load 2P is approx-imately:
(A) 5.7 kN?m
(B) 6.2 kN?m
(C) 9.1 kN?m
(D) 10.1 kN?m