Find the number of revolutions made by the motor

Assignment Help Physics
Reference no: EM13548344

An electric fan is turned off, and its angular velocity decreases uniformly from 400 rev/min to 220 rev/min in 5.00 s. A) Find the angular acceleration in rev/s^2. B) Find the number of revolutions made by the motor in the 5.00 s interval. C) How many more seconds are required for the fan to come to rest if the angular acceleration remains constant at the value calculated in part A?

Reference no: EM13548344

Questions Cloud

Sound is transmitted through the massive walls : As people sing in church, the sound level everywhere inside is 107 dB. No sound is transmitted through the massive walls, but all the windows and doors are open on a summer morning. Their total area is 23.0 m2. (a) How much sound energy is radiated i..
Calculate its velocity and its period : A 5000kg satellite orbits earth at a distance of 35,000km above the surface of the earth. Calculate its velocity and its period
Estimate how fast was the car going : if a car wheels are locked and the resulting skid marks are 150m long, how fast was the car going when the wheel became locked
Estimate the magnitude of the total acceleration of the ball : In a fast-pitch softball game the pitcher is impressive to watch, as she delivers a pitch by rapidly whirling her arm around so that the ball in her hand moves in a circle. Find the magnitude of the total acceleration (centripetal plus tangential) ..
Find the number of revolutions made by the motor : An electric fan is turned off, and its angular velocity decreases uniformly from 400 rev/min to 220 rev/min in 5.00 s. Find the angular acceleration in rev/s^2. Find the number of revolutions made by the motor in the 5.00 s interval. How many more..
Find with what minimum speed must you drive : The highest part of a road over the top of a hill follows an arc of a vertical circle of radius 50.0 m. With what minimum speed must you drive
Stan and ollie are standing next to a train track : Stan and Ollie are standing next to a train track. Stan puts his ear to the steel track to hear the train coming. He hears the sound of the train whistle through the track 2.4 s before Ollie hears it through the air. How far away is the train? (Use 5..
What is the frequency of the fundamental oscillation : A cord of length 1.3 m is fixed at both ends. Its mass per unit length is 1.1 g/m and the tension is 11 N. (a) What is the frequency of the fundamental oscillation? Hz (b) What tension is required if the n = 3 mode has a frequency of 0.60 kHz? N
What was the club velocity before the collision : A golf ball of mass 0.050 kg is at rest on the tee and has a velocity of 102 m/s immediately after being struck. what was the club velocity before the collision

Reviews

Write a Review

Physics Questions & Answers

  Find the magnitude of the resulting magnetic field

A sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere.

  Find the equivalent resistance

A resistor is in the shape of a cube, with each side of resistance  R . Find the equivalent resistance between any two of its adjacent corners.

  What is the electric field at the location

Question: Field and force with three charges? What is the electric field at the location of Q1, due to  Q 2 ?

  What is the maximum displacement of the bridge deck

What is the maximum displacement of the bridge deck?

  What is the magnitude of the current in the wire

What is the magnitude of the current in the wire as a function of time?

  Blackbody

Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.

  Gravity conveyor

Illustrate the cause of the components accelerating from rest down the conveyor.

  Calculate the dc voltage

Calculate the dc voltage applied to the circuit.

  Quadrupole moments in the shell model

Quadrupole moments in the shell model

  Determine the tension in each string

Determine the tension in each string

  Introductory mechanics: dynamics

Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.

  Evaluate maximum altitude

Evaluate maximum altitude?

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