A worker on a scaffold (board) on a billboard throws a ball straight up. The ball has an initial velocity of 11.1 m/s when it leaves the worker's
hand at the top of the billboard. (a) What is the maximum height the ball reaches
relative to the top of the billboard? (b) How long does it take the ball to reach this
height? (c) What is the position of the ball at t = 2.00 s? (Show all the work and
formulas) *
Your answer

Around faucet handle is part of a(n) a. lever b. screw c. inclined plane d. wheel and axle

Next a skier is pulled by a tow rope up a frictionless ski slope that makes an angle of 15 with the horizontal. the rope moves parallel to the slope with a constant speed of 0.69 m/s. the force of the rope does 800 3 of work on the skier as the skier moves a distance of 8.4 m up the incline. (a) if the rope moved with a constant speed of 2.2 m/s how much work would the force of the rope do on the skier as the skler moved a distance of 8.4 m up the incline? at what rate is the force of the rope doing work on the skier when the rope moves with a speed of (b) 0.69 m/s and (c) 2.2 m/s?

The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. what is the specific heat ratio? show the math steps .