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An accelerating voltage of 2.59 103 V is applied to an electron gun, producing a beam of electrons originally traveling horizontally north in vacuum toward the center of a viewing screen 38.5 cm away.
What is the magnitude of the deflection on the screen caused by the vertical component of the Earth's magnetic field, taken as 20.0 µT down?
Two identical, small insulating balls are suspended by separate 0.36-m threads that are attached to a common point on the ceiling. obtain the tension in the threads
A thin, circular disk of radius R = 30 cm is oriented in the yz-plane with its center as the origin. find the magnitude of the electric field due to the disk
A projectile is fired horizontally from a gun that is 52.0 m above flat ground. The muzzle velocity is 215 m/s. What is its speed as it strikes the ground
uniform thin rod of length L=2.5 m and mass 2 kg can rotate in a horizontal plane about a vertical axis through its center. what is the angular velocity of the rod immediately after the collision
what is the speed of an electron with a de Broglie wavelength of .29nm, What is the speed of a proton with a de Broglie wavelength of .29nm
The SI units of mass density are kg/m3, but there are several other common units. One of the most commonly used units of mass density is gram per cubic centimeter, or g/cc. What is the buoyant force on the mass
Suppose a single electron orbits about a nucleus containing two protons (+2e), find the magnitude of the electron's centripetal acceleration
The double slit experiment explains wave interference. Describe a particular innovation in a specific field
The critical angle for a special type of glass in air is 41.8. The index of refraction for water is 1.33. What is the critical angle if glass is immersed in water.
An object is viewed through a 35 cm thick tank of water (n=1.33) at an angle of 30 degrees from parallel to the tank surface. what is the apparent displacement the object from its actual location
A seagull flies with a velocity of 12.5 m/s straight into the wind. (ie.. this the velocity of the gull relative to the wind), Calculate the speed of the wind
Oily n =1.38 finger.prints on a glass plate n = 1.52 preferentially reflect light with a frequency of 550 mm. What is the thickness of the finger print
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