How long will it take this hoist to lift a mass

Assignment Help Physics
Reference no: EM13555597

A hoist is powered by an electric motor that draws 4.82 kilowatts of electric power. The system is 59.2% efficient (i.e., 5.92% of electric power is actually used to lift the load, the rest being wasted heat, the weight of the lifting ropes and pulleys, etc.) How long will it take this hoist to lift a 2550 kg mass to the top of a 75.4 m high building?

Reference no: EM13555597

Questions Cloud

Explain peanut butter that contains 18g of carbohydrate : The total Calories for 6 tablespoons of crunchy peanut butter that contains 18g of carbohydrate, 48g of fat, and 21g of protein.
Find the power the car needs to do this : A 2000 kg car starts at rest at the bottom of a hill. The road is flat at an angle of 5.22% with the horizontal. Accelerating at a constant rate, Find the power the car needs to do this
Prepare adjusting entries for the seven items : Prepare adjusting entries for the seven items - Drew Carey collected $40,000 for consulting services to be performed from December 1, 2010, through March 31, 2010.
Determine the net force on the wire from the magnetic field : A wire carrying .8 A of current is bent into a right angle the j lenght .04m and i .3m. Determine the net force on the wire from the magnetic field
How long will it take this hoist to lift a mass : A hoist is powered by an electric motor that draws 4.82 kilowatts of electric power. How long will it take this hoist to lift a 2550 kg mass to the top of a 75.4 m high building
Magnitude of the balls net displacement in centimeters : Ball rolls 60cm to the porch's edge, drops 40 cm, continues rollingon the grass, and eventually stops 80 cm from the porch'sedge. What is the magnitude of the ball's net displacement ,in centimeters?
Find the motor power required to run the t-bar : A T-bar tow is used to pull 80 skiers up a 600-m long slope inclined at 15.0 degrees to the horizontal at a speed of 2.5m/s. Find the motor power required to run the T-bar
Explain one of the components of polluted air is no : One of the components of polluted air is NO. It is formed in the high-temperature environment of internal combustion engines by the following reaction
What is the force of tension in the string of the pendulum : If a 4.0 kg mass goes 15 m/s in a circular path whose radius of curvature is 75 m, what is the force of tension in the string of the pendulum

Reviews

Write a Review

Physics Questions & Answers

  Calculate the magnitude of the magnetic field at the center

Water at a gauge pressure of 3.0 atm at street level flows into an office building at the speed of 0.40 m/s by a pipe 5.0 cm in diameter. The pipe tapers down to 2.20 cm in diameter by the top floor, 15 m above, where the faucet has been left open. E..

  What is the hoop''s speed just before it hits the wall

One afternoon, you are playing on a wooden basketball court with a hula?hoop to amuse yourself. The hoop has a mass of 500g and a radius of 55 cm. What is the hoop's speed just before it hits the wall

  Angular position of a particle be completely undetermined

Show that the uncertainty principle can be expressed in the form ΔL Δθ is greater or equals to h/2 where θ is an angle and L is the angular momentum. for what uncerainty in the angular momentum will the angular position of a particle be completely un..

  Determine the direction of the net electrostatic force

Determine the direction of the net electrostatic force on charge q3 (angle with respect to the positive x-axis).

  Calculate the dissipated power

A 240 kV power transmission line carrying 500 A is hung from grounded metal towers by ceramic insulators, each having a 1.20, Calculate the power dissipated by 100 of them.

  What is the direction of the net displacement of the ball

A kicker punts a football from the very center of the field to the sideline 36 yards downfield. What is the direction of the net displacement of the ball

  What will be the length of wire formed

You melted a copper cylinder of volume 15.0 cm3 to fabricate a thin wire of diameter 0.02 mm. What will be the length of wire formed

  What is the force caused by water on the bottom

An insulated Thermos contains 119 cm3 of hot coffee at 64 °C. You put a 12g ice cube at its melting point to cool the coffee. By how a lot of degrees have your coffee cooled once the ice has melted and equilibrium is reached.

  Calculate the period of the square wave

Calculate the period of the square wave (in milliseconds) to which the function generator is to be set in order five 1/e-times of the RC circuit to be accommodated into one half of the square wave

  Find the thermal efficiency of the cycle

A reversible isochore from an equilibrium state at P1= 1 bar, t1=100C to an equilibrium state at t2=300C followed by a adiabatic isentropic expansion to P3=1 bar, Find the thermal efficiency of the cycle

  What is the ratio of the initial volume to final volume

An electron moves in a circular path perpendicular to the constant magnetic field with a magnitude of 2.00 mT. The angular momentum of the electron about the center of the circle is 5.50 multiplied by 10-25 J•s.

  What is the force on the block from wall

Two long, parallel wires are separated by a distance of 3.40. The force per unit length that each wire exerts on the other is 3.20×10-5, and the wires repel each other. The current in one wire is 0.6690.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd