Explain how many revolutions would the wheel

Assignment Help Physics
Reference no: EM13116933

A high-speed flywheel in a motor is spinning at 500 when a power failure suddenly occurs. The flywheel has mass 37.0 and diameter 79.0 . The power is off for 30.0 and during this time the flywheel slows due to friction in its axle bearings. During the time the power is off, the flywheel makes 180 complete revolutions.

How long after the beginning of the power failure would it have taken the flywheel to stop if the power had not come back on?

How many revolutions would the wheel have made during this time?

Reference no: EM13116933

Questions Cloud

Find probability invoices written contain errors : To check this theory, 20 invoices are randomly selected and 5 are found to have errors. What is the probability that of the 20 invoices written, five or more would contain errors if the theory is valid?
Compute percentage of parts will not meet the weight specs : The process that produces the parts yields a mean of 24.5 ounces and a standard deviation of 0.2 ounce. The distribution of output is normal. What percentage of parts will not meet the weight specs?
Maximizes pro t at current price and quantity : Firm A is the sole supplier of a certain product. A's marginal cost equals average cost MC = AC = 30, and it faces market demand given by inverse demand function P = 120 0:5Q. Suppose at the moment A produces quantity q = 120 units at price p = ..
Why are the dissolved oxygen levels high : When having tap water in a bottle, before shaking it, why are the dissolved oxygen levels high?
Explain how many revolutions would the wheel : How long after the beginning of the power failure would it have taken the flywheel to stop if the power had not come back on? Explain how many revolutions would the wheel have made during this time?
Identify oxidation-reduction reactions among the following : Identify the oxidation-reduction reactions among the following: 1. Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s)
How would you teach the form ''going to + verb'' : "How would you teach the form 'going to + verb' used for future plans to a pre-intermediate class?
What is the speed of the block immediately after the bullet : fired horizontally at a speed of 550, goes completely through the block, emerging at a speed of 180 . Illustrate what is the speed of the block immediately after the bullet exits?
Find approximately annual payments of the loan : if i have been approved for a $70,000 loan toward the purchase of a new home at 12% interest. The mortgage is for 30 years. How much are the approximately annual payments of the loan? Hint: Assume you pay yearly.

Reviews

Write a Review

Physics Questions & Answers

  Determine the maximum load in terms of theta min

Determine the maximum load in terms of theta_min and other quanitites given in the problem introduction.

  Estimate the charge of each

Neptune has a mass 17.20 times larger than that of Earth and a radius 3.88 times larger. A person weighing 140 lb on the Earth would weigh how much on Neptune.

  What is proton kinetic energy at the later time

A proton accelerates from rest in a uniform electric field of 675 N/C. At some later time, its speed is 1.35 106 m/s. (a) Find the magnitude of the acceleration of the proton.

  What does the scale indicate

A solid has a volume of 8cm3. When weighed on a spring scale calibrated in grams, the scale indicates 20g. What does the scale indicate if the object is weighed as immersed in a liquid of density 2g/cm3.

  What is the force at sea level

What is the thinnest soap film (excluding the case of zero thickness) that appears black when viewed by reflected light with a wavelength of 480 {rm nm}? The index of refraction of the film is 1.33, and there is air on both sides of the film.

  Which provides the centripetal force on the car

A car takes a sharp turn on a road. Which of the following provides the centripetal force on the car? The weight of the car, frictional force, tangential acceleration, or gravitational force?

  Calculating the temperature of earth''s atmosphere

Two parallel rods are each 0.50 m in length. They are attached at their centers to either end of the spring (spring constant = 150 N/m) that is initially neither stretched nor compressed.

  What is the final temperature of the gas

A mass rests on top of the piston. The initial temperature of the system is 305 K and the pressure of the gas is held constant at 137 kPa. The temperature is now increased until the height of the piston rises from 23.4 cm to 27.0 cm. What is the f..

  What is the asteroid''s escape speed

A student shoots spitball at the wall from a height of 1.50 meters. The spitball has an initial horizontal velocity of Vxo, other than has no vertical velocity component. The spitball lands on the ground 8 meters from where it was shot. What is the V..

  Which driveway will be safer to park in

A 40-kg girl is bouncing on a trampoline. During a certain interval after leaving the surface of the trampoline, kinetic energy decreases to 240J from 470J. How high does she rise during this interval? Avoid air resistance.

  Find an expression for the electric potential on the y-axis

the center of a 1.50 diameter spherical pocket of oil is 1.00 beneath the Earth's surface.Estimate by what percentage directly above the pocket of oil would differ from the expected value of for a uniform Earth?suppose the density of oil is 8.10^2 ..

  What is the radius r of the planet to two significant figure

Assume that, as lying on a beach near the equator of a far-off planet watching the sun set over a calm ocean, you start a stopwatch just as the top of the sun disappears.

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