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Capacitors are used in many applications where you need to supply a short burst of energy. A 100 micro F capacitor in an electric flash lamp supplies an average power of 10.7 kW to the lamp for 3.00 ms. a.) To what potential difference must the capacitor initial be charged in volts? b.) What is its initial charge in C?
A 73.0-kg parachutist falling vertically at a speed of 6.60m/s impacts the ground, what is the average force exerted on the parachutist by the ground
A box of mass m = 2.5 kg moves along a straight line through a vector displacement d = (6.4 i -3.4 j) m. What is the work done by this force as the box moves
you are given the job of evaluating potential power line systems. one system is designed to operate at v 3500 v and
Under some circumstances, a star can collapse into an extremely dense object made mostly of neutrons and called a neutron star. find the angular speed of the neutron star
Two circular metal plates of radius 0.17 m and thickness 8.5 mm are used in a parallel plate capacitor. A gap of 1.7 mm is left between the plates, What is the capacitance of this capacitor
An intergalactic rock star bangs his drum every 1.50 s. A person on earth measures that the time between beats is 2.30 s. How fast is the rock star moving relative to the earth
Consider a generator with a 300 turn coil on its armature and a uniform magnetic field of 5.4 T. The diameter of the coil is 5.0 cm. how fast do we need to rotate the coil
Two conductors having net charges of +13.0 µC and -13.0 µC have a potential difference of 13.0 V between them. Determine the capacitance of the system
A 1600 kg car traveling eastward at 32 m/s collides at an intersection with a 700 kg motorcycle traveling northward at 45 m/s. What is the direction of the car's velocity after the collision
A bicycle is turned upside down while its owner repairs a flat tire on the rear wheel. A friend spins the front wheel, of radius 0.335 m, and observes that drops of water fly off tangentially in an upward direction when the drops are at the same l..
Illustrate what is the maximum vertical displacement that he ball reaches during its trajectory?
What is the area of contact of each tire. find the coefficient of static friction between the car and track from these data.
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