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Suppose that a disk rotates through two revolutions in 4.2 seconds.
(a) What is its displacement in radians in this time?
(b) What is its average rotational velocity in rad/s?
An observer moving toward Earth with a speed of 0.96 notices that it takes 5.2 for a person to fill her car with gas. Assume, in its place, that the observer had been moving away from Earth with a speed of 0.80.
A race car rounds a curve at 53 m/s. The radius of the curve is 450 m, and the car's mass is 620 kg. What is the centripetal force acting on the car
A rock is dropped off the side of a bridge and hits the water below 5.7 s later. What was the rock's velocity when it hit the water
How much heat energy can created throughout motion
An electron and a proton, starting from rest, are accelerated through an electric potential difference of the same magnitude. In the process, Find the ratio ve/vp
A patient is going to be prescribed bifocals which will be 2.90 cm from the eye. Without the bifocals, what is the patient's far point
A battleship is using sonar (reflected underwater sound signals) to detect the presence of nearby submarines. How far away from the battleship is the submarine
A point mass of m1 = 2.3 kg is placed at the origin. Masses m2 = 5.4 kg and m3 = 7.6 kg are placed at 3.5 m and -5.8 m on the x-axis, respectively. Find out the location on the x-axis of the center of mass.
Some GRIN material is made in the form of a doughnut. The inside diameter (the diameter of the hole in the doughnut) is 34 cm, What should be the highest, and the lowest refractive index of the material
A butterfly at eye level is 26 cm in front of a plane mirror. You are behind the butterfly, 48 cm from the mirror. What is the distance between your eye and the image of butterfly in the mirror.
A constant torque of 21.4 N•m is applied to a grindstone whose moment of inertia is 0.125 kg•m2. Using energy principles, determine the angular speed (in revolutions per second) after the grindstone has made 19 revolutions. (Avoid friction.) Do no..
a car traveling due east at 20 m/s reverses its direction over a period of 10 seconds so that it is traveling due west at 20 m/s. find the direction of the car's average acceleration
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