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We wish to coat a piece of glass (n=1.5) with a thin film (n=1.42) so that a maximum amount of light will be transmitted, what is the minimum thickness of the film in millimeters
A compound is 54.53% C, 9.15% H, and 36.32% O by mass. What is its empirical formula
A heat of 4.3*10^6KJ is req to convert a block of ice at -15deg C into water at 15deg C. What is mass of ice
What is the resulting pH when .005 moles of KOH is added to .1 L of buffer solution that is .100 M in H2PO4- and .100 m HPO4^2- and the Ka2 = 6.2x10^-8
A 58.0 %u03BCF capacitor is connected to a generator operating at a low frequency. The rms voltage of the generator is 5.00 V and is constant. at what frequency will the fuse burn out
A water pipe is having a 2.5cm inside diameter carries water into the basement of a house at a speed of 0.90m/s, what are the speed AND water pressure at the second floor
.28 moles of Br2 and .32 moles of CL2 are introduced into a 5.0 L container at 298 K calculate the equilibrium concentration of BrCl2
The combustion of the alternative fuel, hydrogen gas, released 286 kj per mole of hydrogen gas combusted. if 10.0 l of hydrogen gas at STP was burned to produce electricity, how long would it power
What effect on the value of Ca(OH)2's Ksp (6.5x10^-6 ) would sucking up some suspended calcium hydroxide solid have. Would the Ksp value be higher or lower than the normal value. Why
A 150 MW laser pulse is focused with a lens to a diameter of 1.39 %u03BCm. What is the laser beam's electric field amplitude at the focal point
A laser with wavelength d/8 is shining light on a double slit with slit separation 0.400mm. What is the wavelength %u03BB2 of the second laser
two long parallel wires separated by 50 cm both carry currents of 4.0 A in the same vertically up direction. Find the magnetic field midway between the wires
A toy car is driven by a battery of 9 V. It draws a current of 2mA. What is the resistance of the toy car
An object is placed 40cm in front of a concave mirror whose radius of curvature is 30am. Determine the location of the image and the magnification
a student consumes an average electric power of 5 k W and 4 hours per day. what is the expected monthly bill if the electricity costs 11 cents per kwh
A beam of light is incident on a plane mirror at an angle of 30 degrees to the normal of the mirror. find the angle between the incident beam and reflected beam
Which one is the carbohydrate? Which one is the carbohydrate?
Calculate the pre-equilibrium concentration of Fe3+(aq) in a solution made by mixing 2.8 mL of 2.010?3 M Fe(NO3)3 and 7.2 mL of 2.010?3 M NaSCN. Assume the final volume is 10.0 mL.
A toy car is driven by a battery of 9V. it draws a current of 2mA. what is the resistance of the car
An empty 5.00- flask is charged with 0.450g of pure H2S(g) , at 25 degrees celsius What is the initial pressure of H2S(g) in the flask
A glass sheet measuring 10cm X 25cm is covered by a very thin opaque coating. In the middle of this sheet is a thin, What is the wavelength of the light in air
An object is 20 cm to the left of a lens of focal length 10 cm. What is the distance between the original object and the final image
Which of the following best explains the phrase "descent by modification"?