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An optical disk drive in your computer can spin a disk at up to 10,000 rpm. If a particular disk is spun at 8690 rpm while it is being read, and then is allowed to come to rest over 0.301 seconds, what is the magnitude of the average angular acceleration of the disk? If the disk is 12.0 cm in diameter, what is the magnitude of the linear acceleration of a point 1/11 of the way out from the center of the disk?
question1a. write three methods of increasing the volume of a balloon without adding more molecules to it.describe
The block in the figure oscillates sinusoidally between x = +a and x = %u2212a. The coordinate is x(t) = a cos(wt). Calculate the maximum speed
A clothes dryer is spinning at 75 rpm. A student opens its door and it comes to rest after rotating through four revolutions. What was the magnitude of the dryer's angular acceleration
toad make use of resonance in a closed tube to produce very loud sound the tube is its swin bladder used as an amplifier the sound level of the creature has been measured as 71dB calculate the intensity of the sound
Find the speed of the car when brakes were applied.
You use a sequence of ideal polarizing filters, each with its axis making the same angle with the axis of the previous filter, What is the angle between adjacent polarizers
q1. a person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by
a car weighs 1,725 kg and is speeding on I-75 at 90 miles per hour. The brake rotors are made of 20 kg of iron and steel composite. What is the temperature change in the rotors
Find the rms speed and the average kinetic energy of a hydrogen atom at a temperature of 3.4x107 K. (At this temperature (3.4 x10^7)
A car is traveling along a straight road at a velocity of +34.0 m/s when its engine cuts out. For the next ten seconds, the car slows down, and its average acceleration is a1.
A 77.4 kg manm lifts a 1.3 kg box from the floor a height of 1.1m in 2.1 seconds, what is the change in gravitational potential energy
A gas in a cylinder is held at a constant pressure of 2.20×10^5 Pa and is cooled and compressed from 1.70m^3 to 1.40m^3. Find the amount of the heat that flowed into or out of the gas
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