An ice sled powered by a rocket engine starts from rest on a large frozen lake and accelerates at +34 ft/s2. after some time t1, the rocket engine is shut down and the sled moves with constant velocity v for a time t2. if the total distance traveled by the sled is 16,600 ft and the total time is 90 s, find the following. (a) the times t1 and t2 t1 = s t2 = s (b) the velocity v v = ft/s at the 16,600-ft mark, the sled begins to accelerate at −24 ft/s2. (c) what is the final position of the sled when it comes to rest? ft (d) how long does it take to come to rest? (give the amount of time after the sled begins to decelerate t3, and the time for the entire trip ttotal.) t3 = s ttotal = s

the part of the wave he is travelling on is the crest

im sorry i dont know

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.