Find the angular acceleration of blades as they slow down

Assignment Help Physics
Reference no: EM13547139

A fan is rotating at a rate of 740 rpm. When the motor is turned off, the blades slow to rest in 2.5 s. What is the angular acceleration of the blades as they slow down?

Reference no: EM13547139

Questions Cloud

How much energy is stored in the system : A 7.5 F capacitor is charged to 34 V and is then connected across a 11-mH inductor. (a) How much energy is stored in the system? (b) What is the frequency of oscillation of the circuit? (c) What is the maximum current in the circuit?
Hat is the maximum x-ray energy this machine can produce : A certain medical machine emits x-rays with a minimum wavelength of 0.02 nm. One day, the machine has an electrical problem, What is the maximum x-ray energy this machine (with electrical problems) can produce
How much current would flow through the heater : A heater runs on an AC voltage of 120 V and draws a power of 26 W. If this heater were run instead on a DC voltage of 70 V, how much current would flow through the heater? Hint: The heater can be modeled as a resistor.
What is the rms current in the input coil of the transformer : The power brick for the author's laptop computer has a power rating of 60 W. It uses a step-down transformer to convert the AC voltage from a wall socket (Vrms = 120 V) to a value near 12 V.
Find the angular acceleration of blades as they slow down : A fan is rotating at a rate of 740 rpm. When the motor is turned off, What is the angular acceleration of the blades as they slow down
Find the amplitude of the current through the resistor : A resistor with R = 1.5 k? is connected to an AC generator that operates at 60 Hz with an amplitude of 49 V. (a) Find the amplitude of the current through the resistor.
What is the voltage across the output circuit : A transformer has an input coil with Nin = 400 turns and Nout = 1050 turns. If the voltage across the input coil has an amplitude of 2.1 V, what is the voltage across the output circuit?
Calculate the frequency of the emitted photon : An electron in a hydrogen atom makes a transition from the n = 5 energy stage to the ground state (n=1). What is the frequency of the emitted photon
What was its intensity when it passed a point : The intensity of an earthquake waves passing though the Earth is measured to be 2.0 x 10^6 J/m^2xs at a distance of 48km from the source. What was its intensity when it passed a point only 1.0km from the source

Reviews

Write a Review

Physics Questions & Answers

  Determine the resulting image distance and magnification

An object is placed 3.9m from a lens with a focal length of -5.1 m. Determine the resulting image distance and magnification

  Calculate the number of moles of gas

Suppose the temperature of 4.56 L of ideal gas drops from 359 K to 275 K. Find the number of moles of gas

  Calculate the final speed of the wire as it leaves the rails

A rail gun accelerates a projectile from rest by using the magnetic force on a current-carrying wire. The wire has radius r = 4.3 10-4 m and is made of copper having a density of ? = 8960 kg/m3. Calculate the final speed of the wire as it leaves th..

  Evaluate the resistance of the wire

A copper wire has a length of 50 meters and diameter of 1.6 mm. Copper has a resistivity of 1.68 x 10^-8 ohm. Calculate the resistance of the wire

  Through how many revolutions will it turn

An automobile tire is rated to last for 40,000 miles. To an order of magnitude, through how many revolutions will it turn?

  Find the magnitude of electric force between two charges

Two point charges are separated by d= 10 cm and have charges of q1= +2(mu)C and q2= -2 (mu)C, respectively, What is the magnitude of the electric force between the two charges

  Calculate the acceleration of the cart

A cart is driven by a large propeller or fan, which can accelerate or decelerate the cart. The cart starts out at the position x = 0 m, calculate the acceleration of the cart

  What is the speed of the command module relative to earth

A box is placed on a conveyor belt that moves with a constant speed of 1.05. The coefficient of kinetic friction between box and belt is 0.80. How much time does it take for the box to stop sliding relative to belt.

  What is the pulsars angular acceleration

A pulsar is a rapidly rotating neutron star that emits a radio beam the way a lighthouse emits a light beam. What is the pulsar's angular acceleration

  How much net work is done on the box

An 11.2 kg box is pulled at a constant velocity across a rough level floor by a 317 N force F directed 23.5o above the horizontal, through a displacement x of 5.65 m. How much net work is done on the box

  Analyze the coulombs law

Two charges, qA and qB, are divided by a distance, d, and exert a force, F, on each other. Analyze Coulomb's law and answer the following questions.

  Determine the bullets time of flight

A rifle is aimed horizontally at a target 1,699.92 m away. The bullet hits the target 2.18 inch below the aim point. determine the bullets time of flight

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