How long does it take for disk to reach this angular speed

Assignment Help Physics
Reference no: EM13332888

A computer hard disk starts from rest, then speeds up with an angular acceleration of 200.0 rad/s2 until it reaches a final angular speed of 7300.0 rpm.

(a) What is the final angular speed in units of rad/s?

rad/s.

(b) How long does it take for the disk to reach this angular speed?

s

(c) How many revolutions (not radians) does it make in getting to the final angular speed?

rev

(d) Once the disk reaches its final angular speed, it continues rotating at this same speed. How many revolutions has the disk made 10.0 s after it started up from rest? NOTE: The 10.0 s includes the time to take the disk to get up to full speed, and any additional time to get to 10.0 total seconds.

q

Reference no: EM13332888

Questions Cloud

Explain heat capacity change with temperature : Assuming that neither the density of water nor its specific heat capacity change with temperature, calculate the total heat capacity of the calorimeter. (density of water = 1.00 g/ mL , specific heat capacity = 4.18 J g-1 K-1)
Lets discuss in depth and with data : Are there measures that the government could take to encourage companies to conduct research and development and still control the costs of pharmaceuticals? How is it done in other nations?
How does it affect performance and security : Sector level hard disk encryption is one of the most interesting problems of all. Assume that AES-128 is used to encrypt your local hard disk. What mode will you use? CBC or ECB?
Explain why is china concerned about value of us dollar : China is the largest holder of U.S. government debt and has invested an estimated 70% of its more than $2 trillion stockpile of foreign-exchange reserves (the world's largest) in dollar assets, Reuters reports.
How long does it take for disk to reach this angular speed : A computer hard disk starts from rest, then speeds up with an angular acceleration of 200.0 rad/s2 until it reaches a final angular speed of 7300.0 rpm. How long does it take for the disk to reach this angular speed
Find the aggregate mac function when e ranges from zero to 1 : Find the aggregate MAC function when E ranges from zero to 10.
The shape of the long-run cost curve is determined : The shape of the long-run cost curve is determined by economies and diseconomies of scale. Contrast this curve with the short-run cost curve as it relates to increasing and diminishing marginal returns to labor.
Calculate the angular displacement of the wheel : A wheel of radius 0.390 m starts from rest and accelerates uniformly to an angular speed of 17.0 rad/s in 4.00 s. Calculate the angular displacement of the wheel
Explain what is the pressure of the gas : If 93.5 mol of an ideal gas occuplies 45.5 L at 57.00 C, what is the pressure of the gas.

Reviews

Write a Review

Physics Questions & Answers

  Compute fraction of the coppers electrons have been removed

A 45.0 g ball of copper has a net charge of 1.75 µC. What fraction of the copper's electrons have been removed

  What is its average speed

A butterfly moves with a speed of v = 12.0 m/s east of North. The y-component of its velocity is 8.00 m/s. The angle between the direction of its motion and the x-axis.

  Compute effective current associated with orbiting electron

In the Bohr model of the hydrogen atom, an electron in the 7th excited state moves at a speed of 4.47 104 m/s in a circular path having a radius of 2.59 10-9 m

  Calculate the magnitude of the electrostatic force

A particle of charge +2.56 x 10-6 C is 12.4 cm distant from a second particle of charge -1.55 x 10-6 C. Calculate the magnitude of the electrostatic force between the particles

  How thick should the air layer be

Animals in cold climates often depend on two layers of insulation: a layer of body fat [of thermal conductivity 0.200 W/(m*K)], How thick should the air layer (contained within the fur) be so that the bear loses heat at a rate of 51.1 W

  Find the equilibrium temperature of the two-block system

A 23.0 g block of copper whose temperature is 447 K is placed in an insulating box with a 92.4 g block of lead whose temperature is 132 K. find the equilibrium temperature of the two-block system

  Find out the effective spring constant of the molecule

A 0.5kg block is attached to a spring with spring constant 18 N/m. As the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 34cm/s.

  What is the radius of the planet

Imagine a spherical planet of radius R and an average density of 5.0*10^3 kg/m3; this is approximately the average density of the Earth. What is the radius of the planet

  How much energy is dissipated in the first interval

A damped mass-spring system oscillates at 275-Hz. The time constant of the system is 2.0 s. At t = 0, the amplitude of oscillation is 3.20cm and the energy of the oscillating system is then 32 J.

  Find the average force experienced by the passenger

A car is stopped for a traffic signal. When the light turns green, the car accelerates, increasing its speed from zero to 9.72 m/s in 3.84 s. find the average force experienced by the passenger

  What horsepower is required of the air conditioner motor

An air conditioner operating between 97F and 72F is rated at 3900 Btu/h cooling capacity. What horsepower is required of the air conditioner motor

  What is an average power output of the laser

What is an average power output of the laser. What is the rms value of the electric field in the beam.

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