A disk rotates with constant angular acceleration the, Ask an Expert

Academics

A disk rotates with constant angular acceleration. The initial angular speed of the disk is 2rad/s. After the disk rotates through 20 radians, the angular speed is 3rad/s.

a) What is the magnitude of the angular acceleration? rad/s2

b) How much time did it take for the disk to rotate through 20? radians

c) What is the tangential acceleration of a point located at a distance of 3 cm from the center of the disk? m/s2

View complete question

Physics, Academics

Category:- Physics
Reference No.:- M91222219

Have any Question?Write your Review or question?

Related Questions in Physics

Question a projectile is fired from a gun near the surface

Question: A projectile is fired from a gun near the surface of Earth. The initial velocity of the projectile has a vertical component of 98 meters per second and a horizontal component of 49 meters per second. How long w ...

Question three identical very dense masses of 5200kg each

Question: Three identical very dense masses of 5200kg each are placed on the xaxis. One mass is at x1 = -110cm , one is at the origin, and one is at x2 = 310cm . What is the magnitude of the net gravitational force Fgrav ...

Question a student standing in a canyon yells echo and her

Question: A student standing in a canyon yells "echo," and her voice produces a sound wave of frequency of f = 0.56 kHz. The echo takes t = 3.5s to return to the student. Assume the speed of sound through the atmosphere ...

Question suppose you have a fixed charge of -150 nc at

Question: Suppose you have a fixed charge of -15.0 nC at point X. Points A and B are to the right of point X at distances of 20.0 cm and 40.0 cm from X respectively. Calculate the following: a) the potential at points A ...

Question in a science museum a 110kg brass pendulum bob

Question: In a science museum, a 110kg brass pendulum bob swings at the end of a 15-meter-long wire. The pendulum is started at exactly 8:00 a.m. every morning by pulling it to 1.5m the side and releasing it. Because of ...

Question the power rating on a light bulb indicates how

Question: The power rating on a light bulb indicates how much power it would dissipate when it is hooked up to the standard household voltage of 120 V (this rating does not mean that the light bulb always dissipates the ...

Question a speed skater moving across frictionless ice at

Question: A speed skater moving across frictionless ice at 9.2 m/s hits a 5.0 m wide patch of rough ice. She slows steadily, then continues on at 5.8 m/s. What is her acceleration on the rough ice? The response must be t ...

What is the magnitude of the velocity of a rollercoaster at

What is the (magnitude of the) velocity of a rollercoaster at the bottom of a track that is 89.8 m high if it starts from rest? (Use the value g = 9.8 m/s2 for the acceleration of gravity.) Please provide work to explain

Question a parallel-plate air capacitor has a capacitance

Question: A parallel-plate air capacitor has a capacitance of 920 pF. The charge on each plate is 2.55 ÂµC. (a) What is the potential difference between the plates? (b) If the charge is kept constant, what will be the po ...

A puck is moving on an air hockey table relative to an x y

A puck is moving on an air hockey table. Relative to an x, y coordinate system at time t = 0 s, the x components of the puck's initial velocity and acceleration are v0x = +7.8 m/s and ax = +5.3 m/s2. The y components of ...

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

Recent Questions

Ask Physics Expert