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When the space between two parallel plates is devoid of matter, the capacitance is .47 micro farrads. The dielectric constant is
A 3-MOhms resistor is connected in series with a 2 micro Farrad capacitor and a 6.0 V battery of negligible internal resistance
Suppose the earth suddenly came to halt and ceased revolving around the sun. What would be the earth's speed as it crashed
An automobile batery has 12 V and an internal resistance of .05 ohms. The starter draws 40 amps of current when starting the car. The resistance of the starter is
An 19 ohm resistance is connected across a battery of emf 8 V with an internal resistance 1 ohm. Find the terminal voltage of the battery
A parallel plate capacitor with a plate area of .8m^2 seperated by a .6mm mica sheet. The energy stored in the capacitor is
the U.S. five-cent coin, the nickel, has a mass of 5.1 grams, a volume of 0.719 cm^3, and a total surface area of 8.54 cm^2. how much radiant energy per second comes from the nickel
In a certain particle accelerator, a current of .5mA is caried by a 5-MeV proton beam that has a radius of 1.5 mm. Find the power consumption of the accelerator
A light ray incident on equilateral glass prism, shows minimum deviation of 30degree. Calculate speed of light in glass
A large mirror is hung from a nail. The supporting steel wire has a diameter of 0.20 mm and an unstretched length of 1.60 m. What is the distance between the nail and the top of the frame
You shine a green laser pointer (%u03BB = 535 nm) on a diffraction grating that contains 1.0 x 10 ^4 lines/cm. how far apart will the zeroth-order and first-order bright spots be
A pair of eyeglasses has an index of refraction nglass = 1.52. It is covered with an antireflection layer that has a thickness of 120 nm, what is its index of refraction
An object is in front of a converging lens with a focal length of 11.0 cm. The lens produces a real image located 25.0 cm from the lens. what is the image distance of the new lens
A circular disc of mass 10 kg is suspended by a wire attached to its centre. Determine the torsional spring constant of the wire
A spring (75N/m ) has an equilibrium length of 1.00 m. The spring is compressed to a length of 0.50 m, If the mass is attached to the spring, how far up the slope from the compressed point will the ma
I want to put a 1500 g satellite into orbit around a spherical asteroid with a mass of 3x10^13 kg and a density of 5000 kg/m^3. Since it has no atmosphere, What is the radius of the asteroid
Calculate the equilibrium constants of the dissociation and the standard enthalpy of dissociation at the mean temperature.
pH will be greater than 7 at the equivalence point. C. titration will require more moles of base than acid to reach the equivalence point. D. pH will be equal to 7 at the equivalence point. E. titra
Which of the above sets of quantum numbers could possibly describe an electron in the ground-state configurations of boron
How many moles of NaOH must be added to 0.550 L of 0.191 mol/L HC3H5O2(aq) to obtain a solution with pH=4.7? Assume the temperature is 25oC. (For HC3H5O2, pKa=4.89 at 25oC).
Use standard enthalpies of formation to determine Horxn for: 3NO2(g) + H2O(l) ? 2HNO3(aq) + NO(g) Enter in kJ. -133.5 Find the change in internal energy for this reaction.
Calculate the pH at the points in the titration of 40.00 mL of 0.425 M NH3 for the reaction below. NH3(aq) + HNO3 ? NH4+(aq) + NO3?(aq) For NH3, Kb = 1.8x10-5. Enter your answer with 2 decimal place
The pH at the half-neutralization point. Enter only numbers in your answer. (Do not include units.) (d) The pH at the equivalence point.
Titration will require more moles of base than acid to reach the equivalence point. E. titration will require more moles of acid than base to reach the equivalence point.
Determine the molar solubility of CuCl in a solution containing 0.050 M KCl. Ksp (CuCl) = 1.0 × 10-6. Answer A. 1.0 × 10-12 M B. 5.0 × 10-7 M C. 2.0 × 10-5 M D. 1.0 × 1