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A race car starts from rest on a circular track of radius 274 m. The cars speed increases at the constant rate of 0.560 m/s^2. At the point where the magnitudes of the centripetal and tangential accelerations are equal, find the following.
(a) the speed of the race car.
(b) the distance traveled.
(c) the elapsed time.
a typical cost for electric power is 12.0 per kilowatt-hour. a some people leave their porch light on all the time.
For a common emitter amplifer, current gain is 70. If the emitter current is 8.8mA, Calculate the collector and base current. Also calculate current gain
for spontaneous decay of a parent nucleus into daughter nuclei the parent nucleus must have a mass than the sum total
Block A weighs 40-lb. Block B weighs 80-lb. The coefficient of friction between both blocks and the surface is µ=0.3. Determine how far B travels before it stops
A 9180 kg ancient treasure chest lies at the bottom of the sea. Its volume is 0.839 m3. How much force is needed to lift the chest
an engine, a piston oscillates with simple harmonic motion so that its position varies according to the expression, x = 3.00 cos 3t + ? divide by 4, Find the period and amplitude of the motion
12-gauge copper wire has a radius of 1.03times10-3m. a what is the resistance of 11.5m of this wire at 20degc? b how
Blood Speed in an Arteriole A typical arteriole has a diameter of 0.030 MM and carries blood at the rate of 5.5 x 10^-6 cm^3/s. What is the speed of the blood in an arteriole
A homemade capacitor is assembled by placing two 7 in pie pans 10 cm apart and connecting them to the opposite terminals of a 9 V battery. Estimate the electric field halfway between the plates
A girl whirls a stone attached to a string 1.0m long in a circle with uniform speed. calculate the force provided by the rope to maintain the circular motion of the stone if the mass of the stone is 30.0g
In getting ready to slam-dunk the ball, a basketball player starts from rest and sprints to a speed of 11.9 m/s in 3.94 s. determine the distance he runs
A teeter-totter is made of a 4.200 meter long plank with a mass of 38.0 kilogram, with a fulcrum (pivot point) located 2.400 meters from the right end. find what mass must be located at the left end
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