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A person drives a car around a circular cloverleaf with a radius of 64 m at a uniform speed of 10 m/s.
(a) What is the acceleration of the car?
m/s2
(b) Compare this answer with the acceleration due to gravity as a percentage.
%
Dorothy is up on her 16.0m by 15.0m roof enjoying the view of Kansas. Suddenly, a strong wind blows down her ladder, leaving her stranded. Calculate the force on the roof
A 5.00?F capacitor that is initially uncharged is connected in series with a 5.50k? resistor and an emf source with E= 145V negligible internal resistance, Just after the circuit is completed, what is the voltage drop across the capacitor
You throw a 5-kg ball from a platform (releasing the ball at a height of 5 m) with a speed, 10 m/s, at an angle of 30° with respect to the horizontal. Find the total speed of the ball when it hits the ground
A 1.9 kg object that stretches a spring 8.8 cm from its natural length when hanging at rest oscillates with an amplitude of 6.5 cm, Find the total energy of the system
A constant 6.0-N net force acts for 4.0 s on a 12 kg object. What is the object's change of velocity
A 300 g object attached to the end of a spring oscillates with an amplitude of 7 cm and a frequency of 1.80 Hz. Find its maximum speed and maximum acceleration
Determine the stopping distances for a car with an initial speed of 94 and human reaction time of 0.90 , for an acceleration
An automatic weapon can fire 68 bullets per minute at V = 290 m/s. If each bullet has a mass M = 40 g, what is the average force in N on the shoulder
A 17-cm-long microscope has an eyepiece with a focal length of 3.1cm and an objective with a focal length of 0.35cm. What is the approximate magnification
A 2.74 kg block initially at rest is pulled to the right along a horizontal surface by a constant, horizontal force of 14.6 N. Find the speed of the block after it has been moved 3.26 m
Find out the magnitude of the amount by which the potential difference across the plates changes.
A gas is contained in a cubic box whose sides are 3m long. If the gas is initially at 80 K, and it is heated up to 320 K at constant volume, What is the final pressure
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