Heather in her corvette accelerates at the rate of (3.00i - 2.00j) m/s2, while jill in her jaguar accelerates at (1.00i + 3.00j) m/s2. they both start from rest at the origin of an xy coordinate system. after 5.00 s,

a) what is heather’s speed with respect to jill?


b) how far apart are they?


c) what is heather’s acceleration relative to jill?

•• al and bert are jogging side-by-side on a trail in the woods at a speed of 0.75 m/s. suddenly al sees the end of the trail 35 m ahead and decides to speed up to reach it. he accelerates at a constant rate of 0.50 m/s2, while bert continues on at a constant speed. (a) how long does it take al to reach the end of the trail? (b) once he reaches the end of the trail, he immediately turns around and heads back along the trail with a constant speed of 0.85 m/s. how long does it take him to meet up with bert? (c) how far are they from the end of the trail when they meet?

Me pl give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.

What component of earth’s atmosphere exists entirely as a result of photosynthesis?