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If, using a Cartesian coordinate system with origin O at the top of the hill, the hill;s profile is described by the function y = -(.003m^-1)x^2, where x and y are in meters, determine the minimum speed at which the car would lose contact with the
After a star like the Sun stops producing energy via fusion, it collapses into a degenerate object called a white dwarf, with a size similar to Earth. Take the mass of the Sun to be 2.00 x 10^30kg, the radius of the Earth to be 6.40 x 10^3km, and
(a) What is the magnitude of the attractive force that Bob feels from Stacy? (b) The magnitude of Stacy's charge is twice as much as Bob's. What is the magnitude of Bob's charge?
The catapult on an aircraft carrier can take an aircraft from 0 to 215 mph in 12 seconds, at which time the aircraft launches. Express the launch speed in SI units (meter-kilogram-second system; not km/hr).
A cell membrane has a resistance and a capacitance and thus a characteristic time constant. What is the time constant of a 8.5nm -thick membrane surrounding a 4.0×10^-2mm -diameter spherical cell? Assume the resistivity of the cell membrane
A certain black box contains unknown resistances and sources of emfs connected in an unknown way such that (1) a 10 n resistor accrpss the terminals draws 1.0A and (2) and 18n resistor draws .60A. WHat resistance will draw 0.10A?
A charge Q is transferred from an initially uncharged plastic ball to an identical ball 17 cm away. The force of attraction is then 68nM . How many electrons were transferred from one ball to the other?
A 0.50-µF capacitor is being charged in a circuit. An ammeter in the circuit reads 1.5 A. What is the displacement current through the capacitor?
The drawing shows two situations in which charges are placed on the x and y axes. They are all located at the same distance of 6.4 cm from the origin O. For each of the situations in the drawing, determine the magnitude of the net electric field a
The electric field of a charge is 1.37e+07 N/C at a distance 16.3 cm and points away from the charge. What is the sign and magnitude of the charge?
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