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A bicycle rides by in front of you moving right to left.
a) What is the direction of the angular velocity of the bicycle wheels?
b) If the bicyclists applies his brakes to slow down, what is the direction of the angular acceleration of the bicycle wheel?
c) What is the torque applied to the wheel?
The four tires on the author's car are inflated to an absolute pressure of 2.8 multiply.gif 105 Pa.what is the contact area between each tire and the ground
The pilot of an aircraft wishes to fly due west in a 30.50 km/h wind blowing toward the south. The speed of the aircraft in the absence of a wind is 190km/h. What should its speed relative to the ground be.
Find the electric field inside a hollow plastic ball of radius R that has charge Q uniformly distributed on its outer surface
The mass of the Earth is 5.98 ? 1024 kg, and the mass of the Moon is 7.36 ? 1022 kg. Locate the center of mass of the Earth-Moon system as measured from the center of the Earth
0.20 g of hydrogen gas are held in a rigid container. the temperature of the gas is changed from 50 K to 80 K. How much heat is needed
A ball is thrown downward of a 50 meter high building with a speed of 10 m/s. In what height do the balls meet
Imagine that plane reaches the necessary takeoff velocity
A Ferris wheel with radius 38m is driven by a motor that exerts a force on the wheel 1m from the center. find the normal force at the bottom of the wheel's trajectory
An object weighs 294N in the air. When tied to a string, connected to a balance, and immersed in water, it weighs 240N. When it is immersed in oil, it weighs 258N.
A rifle with a barrel length of 57 fires an 11 bullet with a horizontal speed of 440. The bullet strikes a block of wood and penetrates to a depth of 12. What resistive force (assumed to be constant) does the wood exert on bullet.
The big mall near Sally and Amy's city has extended their operating hours to accommodate the huge crowds expected for the After Thanksgiving Sale. How long were they in the mall
You are studying standing sound waves in an organ pipe of length L with both ends open, What is the frequency of the musical tone produced by the organ pipe in the situation described in part b
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