Estimate the kinetic energy stored in the flywheel

Assignment Help Physics
Reference no: EM13543825

A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 1.00 m and a mass of 575 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up to 5,000 rev/min.

(a) Find the kinetic energy stored in the flywheel.

J

(b) If the flywheel is to supply energy to the car as a 20.0-hp motor would, find the length of time the car could run before the flywheel would have to be brought back up to speed.

h

Reference no: EM13543825

Questions Cloud

Andrea made the following gifts : Andrea made the following gifts
Explain how much energy is needed to convert ice : How much energy is needed to convert 64.0 grams of ice at 0.00 degrees C to water at 75.0 degrees C
What is the new net charge on the sphere : Please show work so I can see all the steps. A metallic sphere initially has a net charge of +4.0 nC. What is the new net charge on the sphere
Forward price of a bond : Forward Price of a bond
Estimate the kinetic energy stored in the flywheel : A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 1.00 m and a mass of 575 kg. estimate the kinetic energy stored in the flywheel
Explain the key intermediate in the glycolysis pathway : What is the key intermediate in the glycolysis pathway that diverges to ethanol in microorganisms. Why is the concentration of ethanol in wine typically 12% or less
What is the number of conduction electrons per aluminum atom : Aluminum has a density of 2.7 103 kg/m3 and a molar mass of 27 g/mol. The Hall coefficient of aluminum is R = -3.0 10-11 m3/C. What is the number of conduction electrons per aluminum atom?
What is the average dividend growth rate : 1.) A firm has paid dividends of $1.02, $1.10, $1.25, and $1.35 over the past 4 years, respectively. What is the average dividend growth rate?
Explain direction of the reaction for the chemical reaction : Predict the shift in the direction of the reaction for the following chemical reaction: CH4 + O2 CO2 + H2O. if methane (CH4) is added.

Reviews

Write a Review

 

Physics Questions & Answers

  What is the net torque produced by the two forces

A uniform solid disk with a mass of 26.3 kg and a radius of 0.214 m is free to rotate about a frictionless axle. What is the net torque produced by the two forces

  Determine the altitude as she crosses the bar

A uniform plank of length 5 m and weight 231 N rests horizontally on two supports, with d = 1.43 m of the plank hanging over the right support. To what distance, x, can a person who weighs 446 N walk on the overhanging part of the plank before it ..

  Find the direction of the electric field

An electron has an initial velocity of 4.9 × 106 m/s in a uniform 1.9 × 105 N/C strength electric field, What is the direction of the electric field

  What is the induced emf opposing the increasing current

The current in a solenoid is increasing at a rate of 6.37 A/s. The cross-sectional area of the solenoid is ? cm^2, and there are 333 turns on its 11.5 cm length. What is the induced emf opposing the increasing current

  Calculate how much charge resides on the capacitor

A heart defibrillator is charged to 350V. It is connected to a patients chest and allowed to discharge through the heart. how much charge resides on the capacitor?

  Required bandwidth to transmit rc time constant & fm signal

Determine the required bandwidth to transmit the RC time constant and FM signal required for Preemphasis circuits.

  What is the balloons new radius

Suppose you have a spherical balloon filled with air at room teperature and 1.0 atm pressure; its raidus is 12cm. what's the balloon's new radius

  How fast are these protons moving

Protons in cosmic rays have been observed with kinetic energies as large 2.70 × 108 eV. How fast are these protons moving

  Estimate the damping constant

A vertical spring of spring constant 140N/m supports a mass of 80g. The mass oscillates in a tube of liquid. Estimate the damping constant b

  Find the electric field strength at given point

An electric dipole is formed from ±1.0nCcharges spaced 2.00mm apart, What is the electric field strength at the points (x, y) = (14.0 cm , 0 cm),(x, y) = (0 cm, 14.0 cm)

  Find the force exerted on the plates of the capacitor

A capacitor has plates that are located .08 meters from each other with air as the material between the plates, Find the force exerted on the plates of the capacitor

  Determine the pressure that each ski exerts on the snow

The depth of water behind the Hoover Dam in Nevada is 220 m. What is the water pressure at base of this dam? (Neglect the pressure due to the atmosphere.)

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