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Two infinite positively charged plates with a uniform chargedensity of 6.80 mC/m2 are placedparallel to the yz-plane with one plane passing through x = 0.65cm and the other through x = -0.65 cm, as shownin the diagram below. Determine the magnitude of the electric fieldat the point (x,y,z) = (3.25,0,0) cm.
A 2.0 kg tether ball is attached to a vertical pole by a 1.5 m long rope. The ball is swung around the pole at an angle of 60 degrees from vertical. how does the tension and angle of the rope change
A 0.94-µF capacitor is charged by a 45.0-V power supply. Find the maximum current in the resulting oscillations
2.1 g of helium at an initial temperature of 120 deg C and an initial pressure of 1.0 atm undergo an isothermal expansion until the volume has doubled. What is the change in thermal energy of the gas
A generator delivers an AC voltage of the form ?v = (64 V) sin (75?t) to a capacitor. The maximum current in the circuit is 1.50 A. Find the rms voltage of the generator
An oscilloscope shows a steady sinusoidal signal of 5 Volt peak to peak, if we have voltage knob on 2 volts per division, how many divisions will be read on the screen
describe the importance of rare earth elements in science and technology. assess the most common uses of these
What is the total charge of the thorium nucleus? (The neutral thorium atom has 90 electrons.), What is the magnitude of the force on an electron at that distance
An incident ray strikes a mirror with an angle of 30 degrees to the surface of the mirror. What is the angle of the reflected ray
An equation of state for a certain material is found to be pV2 – aTV = bT, where a and b are constants. In terms of p, V, T, find (i) the coefficient of thermal expansion, and (ii) the isothermal compressibility.
The red light emitted by a helium–neon laser has a wavelength of 632.8 nm. What is the frequency of the light waves?Hz
An asteroid is discovered to have a tiny moon that orbits it in a circular path at a distance of 115 km and with a period of 49.0 h. Find the escape velocity from the asteroid
A 2 kg car moving towards the right at 4 m/s collides head on with an 8 kg car moving towards the left at 2 m/s, After the collision, the velocity of the combined bodies is
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