A car increases its forward velocity uniformly from 40 m/s to 80 m/s while traveling a distance of 200 m. What is its acceleration during this time?
A) 24 m/s2 B) 8.0 m/s2 C) 9.6 m/s2 D) 12 m/s2
D
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In partially stabilized zirconia, particles of the tetragonal phase transform to the _________phase at the crack tip when subject to a sufficient stress.
Fill in the blank(s) with the appropriate word(s).
Two projectiles are fired from ground level at equal speeds but different angles. One is fired at an angle of 30° and the other at 60°. Neglecting air resistance, the projectile to hit the ground first will be the one fired at
A) 30°. B) 60°. C) both hit at the same time
The atmosphere of Venus is about 95% ________
Fill in the blank(s) with correct word
The number of turns in the coil of a generator is reduced by a factor of 2 and at the same time it is rotated twice as fast keeping other factors constant. What happens to the value of the maximum induced emf?
A) It is reduced by a factor of 2. B) It is reduced by a factor of 4. C) It is doubled. D) It stays the same. E) It is quadrupled.