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An AC generator operates at 22 V and delivers 200 W of power through an ideal (no loss) transformer to the load with the resistance 4.0 \Omega
X rays of wavelength 0.0196 nm are directed in the positive direction of an x axis onto a target containing loosely bound electrons. determine the corresponding change in photon energy
Nitrogen at 5 X 10^5 Pa and 80 degrees C is on one side of a partition, occupying 1/3 of the volume of a 1.2 m^3 container. find the final pressure and temprature
The change in specific enthalpy during the melting of ice at 0 degrees C and 1.01 X 10^5 Pa is ?h= 333.39 kj/kg. find the change in entropy of reservoir and universe
An 8.70-cm-diameter, 340g solid sphere is released from rest at the top of a 1.50-m-long, 18.0 degree incline. What fraction of its kinetic energy is rotational
A 3.3-m-diameter merry-go-round with rotational inertia 100kg?m2 is spinning freely at 0.60rev/s. Determine the total energy lost to friction
A rectangular coil of 58 turns, dimensions 0.100 m by 0.200 m, and total resistance 10.0 ? rotates with angular speed 35.0 rad/s, Calculate the maximum induced emf in the coil
A plane of a 5.0 cm x 8.0 cm rectangular loop of wire is parallel to a 0.19 -T magnetic field. The loop carries a current of 6.2 A. What is the magnetic moment of the loop
The max wavelength of light, which emits electrons is 460 nm. Calculate work function of sodium
An aluminum cup contains 225 g of water and a 40-g copper stirrer, all at 27°C. A 500-g sample of silver at an initial temperature of 85°C is placed in the water. Calculate the mass of the a
A 0.500m -diameter vat of liquid is 2.20m deep. The pressure at the bottom of the vat is 1.30atm. What is the mass of the liquid in the vat
At a certain concentration of reactants the rate of appearance of water in the following reaction is 0.51 M/s.
A lens is formed from a plastic material that has an index of refraction of 1.55. If the radius of curvature of one surface is 1.25 m, calculate the focal length and the power of the lens.
Why did the discrepancy between experiments and classical theory for blackbody radiation occur at high and not low frequencies
An aluminum rod is 24.0 cm long at 20°C and has a mass of 350 g. If 14,000 J of energy is added to the rod by heat, what is the change in length of the rod
Calculate the energy of a mole of photon with wavelength of (a) 200nm (ultraviolet), (b) 150pm(X ray), and (c)1.00cm (microwave).
How did the Dulong-Petit law fail to reproduce heat capacities of monatomic metals at low temperatures and how did Einstein explain and rectify this failure
Place the following complex numbers in a two-dimensional complex plane and find their absolute value lzl and phase angle arg
Draw the trinucleotide formed when a DNA polymerase catalyzes the addition of dCTP do the dinucleotide pppGA.
Green light at 532 nm lights a diffraction grating with 800 lines per cm. Diffraction pattern is on screen 7.5m away. Calculate distance between the diffraction peaks on the screen
Calculate the energy of a mole of photon with wavelength of (a) 200nm (ultraviolet), (b) 150pm(X ray), and 1.00cm (microwave).
Calculate the pH for the following cases in the titration of 25.0mL of 0.2M cyanic acid (HCNO, pKa=3.66) with 0.2M RbOH solution
The disk and the platform go from rest to an angular velocity of 8.5 rad/s in 2.5 seconds. What is the moment of inertia of the disk
Initially the stopcocks are closed. One of the flasks contains 2.0 of , the second 3.7 of , and the third, 0.10 of ethanol. The vapor pressure of at 308 is 42 and that of ethanol is 102 . The stopco
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