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A 50.0 kilogram kid stands at the rim of a merry-go-round of radius 2.40 meter, rotating with an angular speed of 2.40 rad/s.
(a) Find what is the kid's centripetal acceleration?
m/s2
(b) Find the minimum force between her feet and the floor of the carousel that is required to keep her in the circular path?
N
(c) Find minimum coefficient of static friction is required?
An outboard motor for a boat is cooled by lake water at 14.7°C and has a compression ratio of 14.9. Assume that the air is a diatomic gas. Calculate the efficiency of the engine's Otto cycle
A 1.3 m length of wire carrying 5.9 A of current toward the south is oriented horizontally. Estimate the magnitude of the magnetic force on the wire due to the Earth's magnetic field of 5.5 ? 10-5 T at this point
Electric charge can accumulate on an airplane in flight. You may have observed needle-shaped metal extensions on the wing tips and tail of an airplane. Their purpose is to allow charge to leak off before much of it accumulates.
A series circuit contains only a resistor and an inductor. The voltage V of the generator is fixed. If R=18Ω and L=3.4mH,find the frequency at which the current is one-half its value atzero frequency.
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A positive charge +q1 is located to the left of a negative charge -q2. On aline passint through the two charges, theer are two places where the total potential is zero. The first place is between the charges and is 5cm to the left of the negativ..
A bicyclist rides 3.01 km due east, while the resistive force from the air has a magnitude of 7.71 N and points due west. Find the work done by the resistive force during the round trip
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