In straight-line motion, if a moving object slows down, the direction of the acceleration is ______________ the direction of the velocity
Fill in the blank(s) with correct word
opposite to, or antiparallel to
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Suppose you stretch a rubber band. The work you do on the rubber band is
A. positive. B. negative. C. zero.
What's the fundamental reason that Mars has so little geological activity compared to Earth?
A) its small size compared to Earth B) its large size compared to the Earth C) its farther distance than Earth to the Sun D) its closer distance than Earth to the Sun E) its rapid rotation compared to the Earth F) its slow rotation compared to the Earth
If one object has a large redshift and another object has a small redshift, what can we conclude about these two objects?
A) The one with the large redshift is moving toward us faster than the one with the small redshift. B) The one with the large redshift is moving away from us, and the one with the small redshift is moving toward us. C) The one with the large redshift is moving away from us faster than the one with the small redshift. D) The one with the large redshift is hotter and therefore is putting out more radiation. E) The one with the large redshift is redder than the other one.
A coil with a self-inductance of 0.75 mH experiences a constant current buildup from zero to 15 A in 0.25 s. What is the induced emf during this interval?
a. 0.045 V c. 0.030 V b. 0.47 V d. 0.019 V