It takes 15s to raise a 1200-kg car and the supporting 300-kg hydraulic car-lift platform to a height of 2.8 m. Determine (a) the average output power delivered by the hydraulic pump to lift the system. (b) the average power electric required. knowing that the overall conversion efficiency from electric to mechanical power for the system is 82 percent.

Q: Tarzan, who weighs 669 N, swings from a cliff at the end of a convenient vine that is 21 m long.…

A: Given data: Weight of Tarzan (w) = 669 N Length of convenient vane = 21 m Strength of vine = 950 N…

Q: A chair lift is to be installed from the surface down to a depth of 150 m. The inclination is 17…

A:

Q: The fan used to circulate air within a large industrial building is shown in The blade assembly of…

A: The diameter of hub is given as, d=1.5 mR=1.5 m2R=0.75 m The pressure of the fan is given as,…

Q: The escalator steps move with a constant speed of 0.6 m/s. If the steps are 125 mm high and 250 mm…

A: Speed, v =0.6 m/s  Length, l=250 mm  Mass, m = 150 kg Number of steps, n  Height, h = 125 mm The…

Q: A 1500-kg automobile traveling along a straight, level road increases its speed from 54 km/h to 90…

A:

Q: NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to…

A: The weight of the elevator is The counterweight is .The upward velocity of the elevator is

Q: Part A The crate, having a weight of 58 lb, is hoisted by the pulley system and motor M. The crate…

A:

Q: A loaded truck weighs 16(10^3)lb and accelerates uniformly on a level road from 15 ft/s to 30 ft/s…

A: Given Data The weight of the truck is: W=16×103 lb The velocity is: 15 ft/s The final velocity is:…

Q: A centrifugal friction clutch has a driving member consisting of a spider carrying four shoes which…

A: Introduction In this problem, we will compute the mass of each shoe by first computing the…

Q: The engineer shown in the figure has a mass of 70 kg, and his bicycle, an aluminum Alubike, weighs…

A: Given: To find: Velocity

Q: Q6. The 9-kg ball is connected to a spring with spring constant k = 100 N/m and unstretched length…

A: The force responsible for the motion of the ball can be determined as shown below.

Q: the motor is running at 25 rad/s, the tension in the upper part of thebelt is 90N greater than in…

A:

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.