in a second trial, the timer started his watch a bit late. Using the data from the second trial: a. plot the position vs. time graph for the skater. b. How far from the origin was she at t=5 second? How do you know? c. was her speed constant? If so, what was it? d. In the first trial, the skater was further along at 2 seconds than she was in the second trail. Does this mean that he was going faster? Explain your answer.

Protons and neutrons are found within the nucleus of an atom

The plum pudding model of the atom state that ?

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)