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The potential difference from the cathode (negative electrode) to the screen of an old television set is +22,000 V. An electron leaves the cathode with an initial speed of zero.
a)Determine the kinetic energy of the electron.
b)Determine the speed of the electron.
In 1911 Rutherford discovered the nucleus of an atom by observing the scattering of helium nuclei from gold nuclei.
A +5.8 µC charge is placed at the origin and a -3.9 µC charge is placed at x = 25 cm. At what coordinates can a third charge be placed
A cart (821.7g) connected to a hanging mass (240g) is free to move on an incline plane with an angle of 15.3 degrees. Determine which way the hanging mass will move
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 11.0 cm, giving it a charge of -13.4 µC. Find the magnitude of the electric field just inside the paint layer
A rifle with the barrel length of 62cm fires a 12g bullet with a horizontal speed of 380m/s. The bullet strikes a block of wood and penetrates to a depth of 14cm. What resistive force (assumed to be constant) does the wood exert on the bullet? How lo..
As part of a safety investigation, two 1900 cars traveling at 25 are crashed into different barriers. Find out the average forces exerted on (a) car that hits a line of water barrels and takes 1.8 to stop, and (b) car that hits a concrete barrier an..
q1. a steel ball of mass m is released from rest at point p. it follows a smooth curved rail to point q and finally
A 9.4 resistor and a 6.3 resistor are connected in series with a power supply. The voltage drop across the 6.3 resistor is measured to be 13 V. Find the voltage output of the power supply.
the speed of a transverse wave on a string is 479 ms while the wavelength is 0.257 m. the amplitude of the wave is 2.06
Suppose that the air bubble is always in thermal equilibrium with the surrounding water.
An air parcel occupied by an ideal gas (T1 = 255 K, V1 = 1500 m3, m1 = 1680 kg) collides and mixes with a second air parcel occupied by a second ideal gas (T2 = 280 K, V2 = 1200m3, m2 = 1392 kg). Assuming the specific heat capacities of the gases in ..
Three resistors having resistances of R1 = 1.71 Ω, R2 = 2.27 Ω and R3 = 4.93 Ω respectively, are connected in series to a 27.8V battery that has negligible internal resistance. Find the equivalent resistance of the combination
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