During loading in a stress-strain test of a material, we observe that the plot is not linear and has no discontinuities. We can assume that:
(a) The material is nonlinear elastic.
(b) The material is anelastic.
(c) There is elastic and plastic strain.
(d) None of the above can be assumed.
(d) None of the above can be assumed.
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You throw a golf ball at a massive bowling ball at rest and the golf ball bounces backward from it. After the bounce, compared with the golf ball, the bowling ball has more
A) momentum, but less kinetic energy. B) kinetic energy, but less momentum. C) momentum and more kinetic energy. D) less momentum and less kinetic energy. E) not enough information
Where are the Large Magellanic Cloud and Small Magellanic Cloud located?
a. in the spiral arms b. in the disk c. in the bulge d. None of the other choices are correct.
Which of the following statements about circumpolar stars is true at all latitudes?
A) They are the stars close to the north celestial pole.
B) They always remain above your horizon.
C) They make relatively small circles, traveling clockwise around the north celestial pole.
D) Like all other stars, they rise in the east and set in the west.
E) You cannot see them from the Southern Hemisphere.
During a period of high solar activity, most sunspots lie near the Sun's ________
Fill in the blank(s) with correct word