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The quantity of charge q (in coulombs) that has passed through a surface of area 2.05 cm2 varies with time according to the equation q = 6t3 + 7t + 6, where t is in seconds.
(a) What is the instantaneous current through the surface at t = 0.950 s?
_________ A
(b) What is the value of the current density?
______kA/m2
The supersonic aircraft Concorde has a length of 62.7m when sitting on the ground on a typical day when the temperature is 18.0 C. find the temperature T of the Concorde's skin in flight
The period of the orbit is 2.1 hours. The radius of the planet is 4.50 × 106 m. Illustrate what would be the true weight of the satellite if it were at rest on the planet’s surface?
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at what angle to the vertical does the boy throw the can. What is the period of our orbital motion about the center of Galaxy in Earth years.
What is the mass of a puppy that sits on the other piston and balances the person?
A solid cylinder has an area of 10cm^2 and a height of 1.0m. The cylinder is composed of 2 different materials with mass densities of 2000 kg/m^3, what is the mass of the cylinder
A distance away from a uniformly charged spherical object, the magnitude of the electric field is 575V/m and the electric potential is 3.50kV. (a) What is the distance to the center of the object? (b) What is the magnitude of the charge?
You and a friend have been given the task of designing a display for the Physics building that will demonstrate the strength of the electric force, calculate the necessary amount of charge on the marble for a reasonable ramp angle of 15 degrees
The water molecule H2O, with a permanent dipole moment of magnitude of 6.2x10^-30 Cm, What force does the ion exert on the water molecule
A spinning wheel is slowed down by a brake, giving it a constant angular acceleration of 5.20 rad/s^2. What is the angular speed of the wheel at the end of the 2.80-s interval
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