Expression : vf2 = select from the variables below to write your expression. note that all variables may not be required. β, θ, a, b, d, g, h, j, k, m, n, p, s, t, v0 part (b) if the slide is 4.0 m long and the child's final speed is vf = 5.0 m/s, what is their initial speed, in meters per second? numeric : a numeric value is expected and not an expression. v0, max = part (c) when starting from rest, how long, in seconds, does it take the child to reach the bottom of the slide? numeric : a numeric value is expected and not an expression.

Oxygen undergoes an isentropic expansion from 120 degree c and 280 kpa absolute to 140 kpa absolute. determine the final temperature of the oxygen and the amount of work per kg of o_2 produced in the process if it is adiabatic.

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving