Are the following equations dimensionally correct? Explain why for each case. PLEASE HELP I HAVE TO SUBMIT IN ONE HOUR (a) v = at

(b) t = (2x/a)^1/2

(c) v^3 = 2ax^2

(d) F = mvx

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?

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.

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?