If an object starts with a velocity of 5.26 m/s and ends with a velocity of 60.7 m/s in 15.0

seconds, what is its displacement?

(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.)

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?