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a mirror with a focal length 20 cm has a 40 cm tall object placed 100 cm in front of it what is the position of the
a slit of width 20 m is used in a single slit experiment with light of wavelength 650 nm if the intensity at the
the drive propeller of a ship starts from rest and accelerates at 269 x 10-3 rads2 for 280 x 103 s for the next 125 x
relative to a stationary observer a moving objecta keeps its same lengthb appears longer than normalc appears shorter
a 0144 kg baseball leaves a pitchers hand at a speed of 225 ms if air drag is negligible how much work has the pitcher
a van der waals gas undergoes an isothermal expansion from specific volume v1 to specific volume v2i calculate the
you push your physics book 170 m along a horizontal tabletop with a horizontal push of 260 n while the opposing force
rachel is on the roof of a building h15 memters above ground she throws a heavy ball into the air with a speed v26ms at
the second harmonic sinusoidal standing wave in a pipe with both ends open has a wavelength of 200 m the sound speed is
a boat with a horizontal tow rope pulls a water skier she skis off to the side so the rope makes an angle of 130
the suspension system of your 1200 kg car has a natural oscillation frequency of 200 hz without functioning shock
a car chases a coyote down a road ending in a sheer cliff the car has a speed of 400 ms and the coyote has a speed of
a high-energy pulsed laser emits a 10-ns-long pulse of average power 34 1011 w the beam is 2110-3 m in radiusa
a 26-kg cart is rolling along a frictionless horizontal track towards a 19-kg cart that is held initially at rest the
a voltage v is applied to the primary coil of a step-up transformer with a 31 ratio of turns between its primary and
a 1945-w electric hair dryer is designed to work in the united states where the ac voltage is 120 v rms what power is
using the rayleigh criterion one concludes that using fixed wavelength light that it is not possible to resolve details
the vector position of a 350g particle moving in the xy planevaries in the time according to r1 3i 3jt 2jt2 at the
a 10-inch telescope is used to determine if what appears to be one star is actually two stars stars are so far away
what is the mean free path for the molecules in an ideal gas when the pressure is 100 kpa and the temperature is 300 k
the kinetic energy of a proton is 80 of its total energy what is the momentum in kgmiddotms of the protona 15 times
visible light passes through a diffraction grating that has 900 slits per centimeter and the interference pattern is
two pieces of optically flat glass n 150 touch at one edge and a separated by a thin stretched fiber at the opposite
a thin film of mgf2 n138 coats a piece of glass contructive interference is observed for the reflection of light with
an object is placed 100 cm in front of a diverging lens of focal length -25 cm a converging lens of focal length 33 13