Find what is the average power of the elevator motor

Assignment Help Physics
Reference no: EM13511422

A 650 kg elevator starts from rest. It moves upward for 4.50 s with constant acceleration until it reaches its cruising speed, 1.75 m/s.

(a) What is the average power of the elevator motor during this period?

W

(b) How does this power compare with the motor power when the elevator moves at its cruising speed?

Pcruising = W

Reference no: EM13511422

Questions Cloud

Evaluate the average power delivered to the train : The electric motor of a model train accelerates the train from rest to 0.820 m/s in 18.5 ms. The total mass of the train is 875 g. Find the average power delivered to the train during the acceleration
What is jason interest income for 2012 : What is the total amount of interest Jason's Deli earned from the loan to Mark Johnson?
Depict an oxygen consumption cruve for a suspension : Draw an oxygen consumption cruve for a suspension of isolated mitochondria when the following compounds are added in the indicated order. With the addition of each compound all of the previously added compounds remain present
How a peptide bond is made through dehydration : Create an original diagram or series of simple diagrams- Label the primary, secondary, tertiary, and quaternary structures in your diagrams.
Find what is the average power of the elevator motor : A 650 kg elevator starts from rest. It moves upward for 4.50 s with constant acceleration until it reaches its cruising speed, 1.75 m/s. What is the average power of the elevator motor during this period
Prepare journal entries for jeppo farm equipment company : Assuming Lujan Brothers Farm fulfills all the terms of the note, prepare the necessary journal entries for Jeppo Farm Equipment Company for the entire term of the note.
What is the magnitude of the net force on the rotor : The ultracentrifuge is an important tool for separating and analyzing proteins in biological research. If the samples are 11 cm from the axis if the rotor and the ultracentrifuge spins at 6.5×10^4 rpm, what is the magnitude of the net force on the ..
Compute the ph after the following volumes of titrant : Consider the titration of 30.0 mL of 0.035 M NH3 with 0.025 M HCl. Calculate the pH after the following volumes of titrant have been added.
Prepare the journal entry to record bad debt expense : Recording Bad Debts Sandel Company reports the following financial information before adjustments. Prepare the journal entry to record bad debt expense.

Reviews

Write a Review

Physics Questions & Answers

  Compute the magnitude of the muds angular momentum

A gate is free to rotate without friction about its hinges at H. The gate is initially at rest. Compute the magnitude of the mud's angular momentum about H

  Explain how close does the proton get to the line of charge

An infinitely long line of charge has a linear charge density of 5.00×10−12 C/m. A proton is at distance 19.0 cm from the line and is moving directly toward the line with speed 2000 m/s. Explain how close does the proton get to the line of charge?

  What should be focal length of corresponding contact lens

A near-sighted person's eyeglasses has a focal length of ? 22.0 cm, and the lens is 1.8 cm from the eye. what should be the focal length of the corresponding contact lens

  Obtain the direction of the trains motion relative to north

A train moving with constant velocity travels 180north in 12 and an undetermined distance to the west. The speed of the train is 36 M/S^2. Find the direction of the train's motion relative to north

  How much magnetic energy does it contain

A 500-turn solenoid is 23 cm long, 1.5 cm in diameter, and carries 65 mA. How much magnetic energy does it contain

  How long does it take to come back to its inital position

A ball is thrown straight upwith an initial velocity v0=4.9 m/s. Assume that the acceleration due to gravity is g=9.8 m/s^2 downward. How long does it take to come back to its inital position

  What is the time required for an electron

Two parallel plates are 4.0 cm apart. The bottom plate is charged positively and the top plate is charged negatively, producing a uniform electric field of 5.0 * 10 exp 4 N/C in the region between the plates.

  What is the speed of sound of the hikers voice in air

A) Assuming that the Styrofoam absorbs a negligibly small amount of heat and that no heat was lost to the surroundings, what is the specific heat of the metal? B) Which is more useful for storing heat, this metal or an equal weight of water? defin..

  Calculate how fast is the car moving

A point on the outer rim of a tire on a moving vehicle exhibits uniform circular motion with a frequency of 28 Hz. calculate How fast is the car moving in km/hr

  How much will it miss the target

A hunter aims directly at a target (on the same level) 160 m away, If the bullet leaves the gun at a speed of 260 m/s, by how much will it miss the target

  Find the height from the top

A flower pot falls from the roof and passes in front of a window of height h as it falls to the ground to smash to pieces. If the flower pot takes a time T to pass from top to bottom in front of window. Find the (as-yet-unknown) height H from the ..

  Determine the force exerted by the rope on the bucket

A 5.1 kg bucket of water is raised from a well by a rope. find the force exerted by the rope on the bucket.

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