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The work fuction of a particular substance is 7.81*10^-19 J. What is the photoelectric cutoff wavelength for this material?
A positive point charge q1=2.5x10^-5C is fixed at the origin of corrdinates and a negative charge Q2=-5x10^-6C is fixed to the x axis at x=+2m
The electric field at point P just outside the outer surface of a hollow spherical conductor of inner radius 15 cm and outer radius 31 cm has magnitude 465 N/C and is directed outward.
Two resistors have resistances R(smaller) and R(larger), where R(smaller)
A tuning fork vibrating at 516 Hz falls from rest and accelerates at 9.80 m/s2. How far below the point of release is the tuning fork while waves with a frequency of 489 Hz reach the release point? Take the speed of sound in air to be 340 m/s.
A simple pendulum has a length of 52.5 cm and makes 83.0 complete oscillations in 2.00 min, Find the value of g at the location of the pendulum
What lengths of ship three sides according to the observer
Find the current in a 9.00 ? resistor connected to a battery that has an internal resistance of 0.30, What is the emf of the battery
express the potential difference between the plates.
For instance, the flute can be described as an open-open pipe because a flutist covers the mouthpiece of flute only partially. Meanwhile, a clarinet can be described as an open-closed pipe as the mouthpiece of the clarinet is almost completely closed..
An ac voltage source is connected in series with a1.4-?F capacitor and a 690-? resistor. Using a digital ac voltmeter, the amplitude of the voltage source is measured to be 4.0?V rms, Determine the frequency of the ac voltage source
An adventurous archaeologist crosses between two rock cliffs. If the angle between the rope and the horizontal is = 11.8, find out the tension in the rope.
A lighthouse that rises 49 above the surface of water sits on a rocky cliff that extends 19 from its base. A sailor on the deck of a ship sights the top of the lighthouse at the angle of 30.0 above the horizontal.
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