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De Broglie postulated that the relationship ? = h/p is valid for relativistic particles. What is the de Broglie wavelength for a (relativistic) electron having a kinetic energy of 3.39 MeV?
A ship's mast reaches to a height of 15 meters above the surface of a 10-meter-deep lake. When the sun is 30° above the horizon, how long will the shadow of the mast be on the bottom of the lake?
Two capacitors, C1 = 6.00 µF and C2 = 14.0 µF, are connected in parallel, and the resulting combination is connected to a 9.00-V battery. (a) Find the equivalent capacitance of the combination.
A planet can have an atmosphere if the escape speed of the planet is 6 times larger than the thermal speed of molecules in the atmosphere. What is the radius of this object's orbit around the sun
A circuit contains a resistor in series with a capacitor, the series combination being connected across the terminals of a battery. The time constant for charging the capacitor is 5.6 s when the resistor has a resistance of 2.0 x 104 ? What would ..
A football is projected on a flat surface at a 32° angle. If the ball lands 45m from where it started, what is the football's initial velocity
An iron wire has a cross-sectional area of 1.14 10-5 m2. Carry out steps (a) through (e) to compute the drift speed of the conduction electrons in the wire, If the wire carries a current of 9.0 A, calculate the drift speed of conduction electrons
A child runs down a 10 degree hill and then suddenly jumps upward at a 17 degree angle above horizontal and lands 1.5 m down the hill as measured along the hill. what was the initial speed?
An 24 g rifle bullet traveling 370 m/s buries itself in a 4.8 kg pendulum hanging on a 2.6 m long string, which makes the pendulum swing upward in an arc. find the maximum vertical displacement of the pendulum.
A heart defibrillator passes 10.5 A through a patient's torso for 5.00 ms in an attempt to restore normal beating, How much charge passed
A rigid steel frame above the street intersection supports standard traffic lights, each of that is hinged to hang immediately below frame. A gust of wind sets light swinging in a vertical plane. Find out order of magnitude of its period. Situatio..
Consider a capacitor created when two identical conducting plates are placed parallel and close to each in other in vacuum, what is the magnitude of the electrostatic force between the charged plates, Is the force attractive or repulsive
A 253 kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp and the log has an acceleration of 0.700 m/s2, Find the tension in the rope
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