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A person is riding a bicycle, the wheels of a bicycle have anangular velocity of + 22.0 rad/s. Then, the brakes are applied. Incoming to rest, each wheel makes an angular displacement of +14.5revolutions.
(a) How much time does it take for the bike to come to rest?____s
(b) What is the angular acceleration of each wheel?____rad/s^2
a conducting sheet carries a surface current density of k amperesmeter. there are no other currents in the vicinity.a-
A baseball pitcher throws a baseball horizontally at a linear speed of 42.5 m/s (about 95 mi/h). find the tangential speed of a point on the "equator" of the baseball
A 1 170.0 kg car traveling initially with a speed of 25.000 m/s in an easterly direction crashes into the back of a 9 800.0 kg truck moving in the same direction at 20.000 m/s. What is the change in mechanical energy of the car-truck system
An insulated Thermos contains 150cm3 of hot coffee at 83°C. You put a 12g ice cube at its melting point to cool the coffee. By how many degrees has your coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as although..
Katie and Emily are riding on a circular merry-go-round that has a radius of 5 m. Katie is on a horse that is 2.5 m from the center of merry-go-round and Emily is on a tiger that is 4.5 m from the center of the merry-go-round.
A certain waffle iron is rated at1.03kW when connected to a 120-V source. What current does the waffle iron carry?
A sled, which has amass of m=125kg., is sitting on an icyhorizontal surface. find the magnitude of the normal force acting on the sled
You are asked to design a parallel-plate capacitor having a capacitance of 1 F and a plate separation of 1.00 mm. compute the required surface area of each plate. Is this a realistic size for a capacitor.
A quarterback claims that he can throw the football a horizontal distance of 196.6 m (215 yd). Furthermore,he claims that he can do this by launching the ball at the relatively low angle of 25° above the horizontal. To evaluate his claim,determine..
A rock falls off the back bumper of a truck which is traveling at 26.8 m/s. The rock hits the ground 0.387 seconds after it leaves the bumper. How high above the road is the trucks bumper
In an insulated container, 300g of ice at aninitial temperature of -5degrees C is added to 550g of water at aninitial temperature of 20degrees C. estimate the amount of ice remaining
the uss enterprise accelerates from rest at 100000 ms2 for a time of four seconds. how far did the ship travel in that
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