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unpolarized light with an intensity of 760 w m2 is incident on a polarizer with an unknown axis the light then passes
light of wavelength 500 nm illuminates a 05 mm diameter hole a screen is placed 60 m behind the slit what is the width
consider the following reaction at constant p use the information here to determine the value of delta-ssurr at 398 k
an electron entered a parallel-plate capacitor with the speed 5x105 ms horizontally the electric field is perpendicular
a beam of light traveling in water strikes a surface of a transparent material at an angle of incidence of 45deg if the
for a certain chemical reaction dh is gt 0 and ds is lt 0 t- 1 we conclude the reaction must be non-spontaneous
the aire outside a hot-air balloon has a temperature of 17 c assume the pressure of the gas inside the balloon is
a 0138-a current is charging a capacitor that has square plates 520 cm on each side the plate separation is 400 mma
for a certain chemical reaction dh is lt 0 and ds is lt 0 this means that 1we conclude the reaction must be spontaneous
a block of wood floats on water 80 of the wood is submerged in water now a layer of oil is carefully poured on top of
a narrow beam of white light is incident at 30 on a 110cm -thick piece of glass the rainbow of dispersed colors spans
1 a 1000-turn loop radius 0032 m of wire is connected to a 20 ohm resistor as shown in the figure a magnetic field is
a beam of light with red and blue components of wavelengths 670 nm and 425 nm respectively strikes a slab of fused
a telescope can be used as a camera if the film is placed at the image position of the objective lens or mirror so the
a beam of light traveling in air is incident on a transparent plastic material at an angle of incidence of 49deg the
the g string on a violin has a fundamental frequency of 196 hz it is 280 cm long and has a mass of 0500 g while this
two trains on separate tracks move toward each other train 1 has a speed of 129 kmh train 2 a speed of 750 kmh train 2
a water storage tower is filled with freshwater to a depth of 64m it has a circular basin with and are of 30m2a what
a closed organ pipe is 05m long if the speed of sound is 340ms a what is the pipes fundamental frequencyb what is its
an airplane traveling at half the speed of sound emits a sound of frequency 596 khza at what frequency does a
a merter stick pivoted at its center has a 100gm mass suspended at its 20cm marka where should an 80gm mass be placed
one end of a 68-cm-long copper rod with a diameter of 24cm is kept at 480c and the other is immersed in water at
a crate is dragged 3m across a rough floor at a constant speed by a worker applying 500n at an angle of 30 deg above
a star similar to our sun radiates energy at the prodigious rate of 42 x 1026 wa at what rate does this star convert