Robyn has been working out five days a week for the past six months. she is now planning to take a month-long break from the gym. which of the following training principle should robyn consider before taking this break?
a. balance
b. overload
c. reversibility
d. specificity

Which of the following correctly describes the early view of catastrophism?

A1200 kg car traveling north at 10 m/s is rear-ended by a 2000 kg truck traveling at 30 m/s. what is the total momentum before and after the collision?

After a big snowfall, you take your favorite rocket-powered sled out to a wide field. the field is 195 m across, and you know that your sled accelerates at a rate of 3.65 m/s2 when the rocket is on. how much time will it take the sled to cross the field starting from rest, assuming the rocket is on the whole time?