An object is accelerating if it moves
1) with constant velocity
2) in a circular path
3) in a straight-line path
because it is undergoing a change in its
4) speed.
5) direction.
6) net force.
Answer: 2, 5
You might also like to view...
A 0.14-kg baseball is dropped from rest from a height of 2.0 m above the ground. What is the magnitude of its momentum just before it hits the ground if we neglect air resistance?
A) 0.28 kg ? m/s B) 0.88 kg ? m/s C) 0.44 kg ? m/s D) 0.62 kg ? m/s E) 1.4 kg ? m/s
A 75-N box rests on a perfectly smooth horizontal surface. The minimum force need to start the box moving is
A) 75 N. B) 7.5 N. C) 750 N. D) any horizontal force greater than zero.
A nearsighted person has a near point of 12. cm and a far point of 17. cm. If the lens is 2.0 cm from the eye:
(a) what lens power will enable this person to see distant objects clearly? (b) what then will be the new near point?
A(n) ______________ converts electrical energy into mechanical energy
Fill in the blank(s) with correct word