Ask Question, Ask an Expert

+61-413 786 465

info@mywordsolution.com

Ask Physics Expert

Academics


Home >> Physics

A solid disk of mass m1 = 9.3 kg and radius R = 0.23 m is rotating with a constant angular velocity of ? = 33 rad/s. A thin rectangular rod with mass m2 = 3 kg and length L = 2R = 0.46 m begins at rest above the disk and is dropped on the disk where it begins to spin with the disk.

1) What is the initial angular momentum of the rod and disk system?

2) What is the initial rotational energy of the rod and disk system?

3) What is the final angular velocity of the disk?

4) What is the final angular momentum of the rod and disk system?

5) What is the final rotational energy of the rod and disk system?

6) The rod took t = 5 s to accelerate to its final angular speed with the disk. What average torque was exerted on the rod by the disk?

Physics, Academics

  • Category:- Physics
  • Reference No.:- M9878856

Have any Question?


Related Questions in Physics

Question the position of a mass oscillating on a spring is

Question: The position of a mass oscillating on a spring is given byx = (6.8 cm) cos[2t/(0.91 s)]. (a) What is the frequency of this motion? (b) When is the mass first at the position x =-6.8cm? The response must be type ...

Question an old-fashioned single-play vinyl record rotates

Question: An old-fashioned single-play vinyl record rotates on a turntable at 38.0rpm . What are (a) the angular velocity in rad/s and (b) the period of the motion? The response must be typed, single spaced, must be in t ...

Question a regulation table tennis ball has a mass of 27g

Question: A regulation table tennis ball has a mass of 2.7g and is 40mm in diameter. What is its moment of inertia about an axis that passes through its center? The response must be typed, single spaced, must be in times ...

What is the average acceleration of a vehicle which speeds

What is the (average) acceleration of a vehicle which speeds up from 22 m/s to 88 m/s in 21.2 seconds? please provide work to explain

Question suppose the emf generated by a coil rotating in a

Question: Suppose the emf generated by a coil rotating in a magnetic field is zero at t=0, and increases to its first peak at t0=0.11ms. A) What is the angular velocity of the coil in rad/s? B) At what time (relative to ...

Question a proton with a rest mass m16 x 1027kg has a total

Question: A proton (with a rest mass m=1.6 x 10 27 kg) has a total energy that is 4.00 times its rest energy. What is the magnitude of the momentum p of the proton? Please explan in detail each step and what equations ar ...

Question the position of a mass oscillating on a spring is

Question: The position of a mass oscillating on a spring is given by x = (6.6cm) cos[2ϝt/(0.69s)]. Part A: What is the frequency of this motion? Express your answer using two significant figures. Part B: When is the mas ...

Question a penny is placed at the outer edge of a disk

Question: A penny is placed at the outer edge of a disk (radius = 0.147 m) that rotates about an axis perpendicular to the plane of the disk at its center. The period of the rotation is 1.70 s. Find the minimum coefficie ...

Question a research submarine has a 40-cm-diameter window

Question: A research submarine has a 40-cm-diameter window that is 8.1 cm thick. The manufacturer says the window can withstand forces up to 1.2 x 10 6 N. What is the submarine's maximum safe depth in salt water? The pre ...

Question people have proposed driving motors with the

Question: People have proposed driving motors with the earth's magnetic field. This is possible in principle, but the small field means that unrealistically large currents are needed to produce noticeable torques. Suppos ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As

Follow Us

© Copyright 2013-14 mywordsolution.com All rights reserved