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a bullet with mass 125 g and speed 949 ms is fired into a wooden block with a mass of 113 g which is initially at rest
a find the critical angle of total internal reflection from glass with refraction index n 151 into aircr degb an
a transmission line that has a resistance of 05 omh per km of length is used to transmit 200 mw across 300 miles if the
an x ray with a wavelength of 0100 collides with an electron that is initially at rest the x rays final wavelength is
measurements of the radioactivity of a certain isotope tellyou that the decay rate decreases from 8355 to 3160 over a
a solenoid is made by wrapping a wire so that it makes a solenoid coil having 500 turns of diameter 800 cm and length
a small power plant produces a voltage of 6kv and 150a the voltage is stepped up to 240kv by a transformer before it is
suppose one bullet with m512g moving to the right with a speed of 250 ms directed at 213 degrees above the horizontal
electrons accelerated by a potential difference of 1308 v pass through a gas of hydrogen atoms at room temperature
you are approaching a stationary sound of 1000hz at 35ms what is the change in frequency of the sound as you approach
he-ne lasers are often used in physics demonstrations they produce light of wavelength 633nm and a power of 0650mw
at a distance of 600km from a radio station antenna the electric-field amplitude is 880times102 vmpart a assuming that
an electromagnetic wave of wavelength 405 is traveling in vacuum in the direction the electric field has amplitude
a sinusoidal electromagnetic wave having a magnetic field of amplitude 150ut and a wavelength of 430nm is traveling in
a police car has a 1000hz siren it is traveling at 35ms on a day when the speed of sounds through air is 350ms the car
how fast is an ion of deuterium moving assuming rms speed if it is in a plasma with a temperature of 100 x 106 k kb
a steel bar is subjected to a vibration at one end with an amplitude of 0001 meters and a frequency of 250 hz matches
a high-e string on a guitar has a length of 0635 meters and a mass of 251e-4 kg both of these refer only to the
an object undergoes simple harmonic motion with a period of 0015 s and an amplitude of 12e-2 ma what is the period of
light intensity of a 100 w bulb at a certain distance is 1 wm2 the distance is doubled what are the electric field
a fish is 2 m below the surface of a smooth lake what is the diameter of circle on the surface through which the fish
in the experiment to study polarization the angle between the transmission axes of two polarizers is theta light from
a typical hospital accelerator built for proton beam therapy accelerates protons from rest by passing them through and
what quantum number of the hydrogen atom comes closest to giving a 500-nm-diameter electron orbitwhat is the electrons
a potters wheel is a uniform disc of diameter 1m and a mass of 70kg the wheel is initially spinning at a rate of 30