The long, heavy tail of a spider monkey enables the monkey to easily vary its
A) weight.
B) momentum.
C) inertia.
D) center of gravity.
E) none of the above
Answer: D
You might also like to view...
Why is the recoil less if a person holds a gun tightly against the shoulder?
A. The recoil is not less. Since momentum is conserved, the recoil is the same whether or not the gun is held tightly B. Your mass becomes part of the system, and since momentum is conserved, the velocity of the gun/person system is reduced C. If the gun is held tightly the bullet doesn’t travel as fast so conservation of momentum leads to a smaller recoil velocity of the gun.
A critical difference between millisecond and normal pulsars is that:
A) the millisecond ones are not associated with the galaxy, but scattered everywhere. B) the millisecond ones are speeding up, but normal pulsars slow down over time. C) the millisecond ones must eventually collapse into black holes. D) the millisecond ones all have planets, while normal ones do not. E) millisecond ones are only found in globular clusters, while normal ones are not.
Which terrestrial planet has the youngest surface?
A. Earth B. Mercury C. Mars D. Venus
The Hubble time is expressed as:
A) H × D. B) D/v. C) 1/H. D) H × T. E) the critical density/H.