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A bicycle wheel is rotating at 49 when the cyclist begins to pedal harder, giving the wheel a constant angular acceleration of 0.42 .
A) What is the wheel's angular velocity, in rpm, 13 later?
B) How many revolutions does the wheel make during this time?
If it takes 9.19e5 J of heat to bring 0.30 kg of ice at -17*C to water vapor at 108*C, what is the specific heat of the water vapor
An artificial lens is implanted in a person's eye to replace a diseased lens. The distance between the artificial lens and the retina is 2.78 cm. What is the power of the implanted lens
When he reaches equator, the sphere is rotating at how many rpm. A car takes 9 s to go from v = 0 to v = 55 m/s at about constant acceleration.
A 0.15-kg bullet is fired with a velocity of 86.9 m/s into a solid cylinder of mass 24.1 kg and radius 0.23 m. Find the angular speed of the system after the bullet strikes and adheres to the surface of the cylinder
The position of an object as a function of time is r? =(3.2t+ 0.90 t2)i^+(1.7t? 1.2 t2)j^m, Find the object's magnitude of the acceleration and What is the direction of the acceleration
A woman on a bridge 80.5 m high sees a raft floating at a constant speed on the river below. She drops a stone from rest in an attempt to hit the raft. Find the speed of the raft
A particle of mass m is constrained to move in a vertical plane that is rotating with constant angular velocity, , around a vertical axis. Gravity is acting downward on the particle.
25% of a radioactive material stays active after 4 hours. What is the half-life of this radioactive material
Mary needs to row her boat across a 100-{rm m}-wide river that is flowing to the east at a speed of 1- {rm m/s}. Mary can row the boat with a speed of 2- {rm m/s} relative to the water.
A vector has an x component of -24.0 units and a y component of 36.4 units. Find the magnitude and direction of this vector
What is velocity of wind that is moving the plane
At the surface of Jupiter's moon Io, the acceleration due to gravity is 1.81m/s^2 . A watermelon has a weight of 53.0N at the surface of the earth. What is its mass on the earth's surface
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