Janelle walks 168 metres in two minutes. What is her speed in metres per second?
m/s

F500 j of energy were added to 1 kg of each of these samples, which would experience the least temperature increase?

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's

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?