A disk turns through 42 revolutions as it slows from an angular speed of 2 rad/s to

Fantastic news! We've Found the answer you've been seeking!

Question:

A disk turns through 42 revolutions as it slows from an angular speed of 2 rad/s to stop.

i) Assuming a constant angular deceleration, what is the angular acceleration?

ii) How long does it take to stop?

iii) How much time is required for it to complete 21 of the 42 revolutions?

Related Book For answer-question

Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

See More Books

Posted Date: Jul 09, 2020 01:18 AM

See More Questions

A flywheel turns through 40 rev as it slows from an angular speed of 1.5 rad/s to a stop. (a) Assuming a constant angular acceleration, find the time for it to come to rest. (b) What is its angular...
A flywheel rotates with an angular speed of 25 rev/s. As it is brought to rest with a constant acceleration, it turns 50 rev. (a) What is the magnitude of the angular acceleration? (b) How much time...
A turntable reaches an angular speed of 33.3 rpm in 2.0 s, starting from rest. (a) Assuming the angular acceleration is constant, what is its magnitude? (b) How many revolutions does the turntable...
Sandhill Company manufactures hockey pucks and soccer balls, For both products, materials are added at the beginning of the production process and conversion costs are incurred evenly. Sandhill uses...
Suppose Alice has a message that she is ready to seod to anyone who asks. Thousands of people want to obtain Alice's message, but each wants to be sure of the integrity of the message. In this...
Draw figures that show your indifference curves for the following pairs of goods: Right gloves and left gloves Coca-Cola and Pepsi Tylenol and acetaminophen (the generic form of Tylenol) Desktop...
Estimate the model parameters for the gasoline mileage data using principalcomponent regression. a. How much has the residual sum of squares increased compared to least squares? b. How much shrinkage...
The Terminus Hotel, a 200-room facility located in a medieval city in Southern Spain. As consequence of poor management and old-fashioned interior design. the hotel experienced slumping demand since...
1 5y+ x-5 Reduce the complex fraction 3x + 1 3
The most probable velocity ump is the velocity possessed by the greatest number of gas particles. At a certain temperature, the probability that a gas particle has the most probable velocity is equal...
Consider the beam shown in Fig. 1; the cross section of this W250 x 89 Wide Flange Steel Beam is also detailed in the figure. We need to make a holistic analysis of this beam and assess L=8m w = 10...
A $10 \%$ rich mixture of heptane $\left(\mathrm{C}_{7} \mathrm{H}_{16} ight)$ and air is trapped in the cylinder of an engine at a pressure of $1 \mathrm{bar}$ and temperature of \(400...
A turbocharged, intercooled compression ignition engine is operated on octane $\left(\mathrm{C}_{8} \mathrm{H}_{18} ight)$ and achieves constant pressure combustion. The volumetric compression...
Revisit the guidelines in this chapter for negotiating a job offer. Then, with the two classmates you worked with for Exercise 16, practice negotiating. Divide roles: the hiring manager, candidate,...
An engine runs on a rich mixture of methyl and ethyl alcohol and air. At a pressure of 1 bar and $10^{\circ} \mathrm{C}$ the fuel is completely vapourised. Calculate the air-fuel ratio by volume...
A gas engine with a volumetric compression ratio of $10: 1$ is run on a weak mixture of methane $\left(\mathrm{CH}_{4} ight)$ and air, with $\phi=0.9$. If the initial temperature and pressure...
Find equations of the tangent line and normal line to the given curve at the specified point. y = 7xe*, (0, 0) tangent line y = normal line y =
Revol Industries manufactures plastic bottles for the food industry. On average, Revol pays $76 per ton for its plastics. Revol's waste-disposal company has increased its waste-disposal charge to $57...
Add the quantities y1 = 10 sin wt, y2 = 15 sin (wt + 30o), and y3 = 5.0 sin (wt 45o) using the phasor method.
A person pushes horizontally with a force of 220 N on a 55 kg crate to move it across a level floor. The coefficient of kinetic friction is 0.35. What is the magnitude of? (a) The frictional force...
An unknown resistor is connected between the terminals of a 3.00 V battery. Energy is dissipated in the resistor at the rate of 0.540 W. The same resistor is then connected between the terminals of a...
Consider the data file $m r o z$ on working wives. Use the 428 observations on married women who participate in the labor force. In this exercise, we examine the effectiveness of alternative...
To examine the quantity theory of money, Brumm (2005) ["Money Growth, Output Growth, and Inflation: A Reexamination of the Modern Quantity Theory's Linchpin Prediction," Southern Economic Journal,...
Consider the data file mroz on working wives and the model $\ln (W A G E)=\beta_{1}+\beta_{2} E D U C+$ $\beta_{3} E X P E R+e$. Use the 428 observations on married women who participate in the...

A disk turns through 42 revolutions as it slows from an angular speed of 2 rad/s to

Question:

Expert Answer:

Fundamentals of Physics

Students also viewed these physics questions