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You note that your prescription for new eyeglasses is -3.75 D. What will their focal length be
In a series R-L-C circuit, L=.165H C=85.0uF and the voltage amplitude of the source is 200V. What is the resonace angular frequency of the circuit
Calcluate the energy required to convert 1.70g of ice originally at -12.0 oC into stream at 105oC. The other two answers on this site are completely different from the solutions manual.
A solenoid is designed to prodcue a 2.78*10^-2 T magnetic field near its center. It has a radious of 1.4cm, What total length of wire is required to make this solenoid
N2 +3 H2 - 2NH3 Suppose that at a particular moment during the reaction, molecular hydrogen is racting at the rate of 0.074M/s. what is the rate of formation of ammonia
To fit a contact lens to a patient's eye, a keratometer can be used to measure the curvature of the cornea-the front surface of the eye. Determine the radius of curvature of the cornea
Calculate the ratio of CH3NH2 to CH3NH3Cl required to create a buffer with pH = 10.10 [CH3NH2]/[CH3NH3CL] = ? I know that the answer is 0.34 but is not wright to write it in this way in mastering ch
Two particles are created in a high-energy accelerator and move off in opposite directions. What is the speed of the second particle, as measured in the laboratory
Calculate the theoretical yield for the reaction if .80g of succinic anhydride and excess aniline was used. Whis is the percent yield if a student isolates 0.9g of succinimide
What is the wavelength of EM radiation that ejects 2.00-eV electrons from calcium metal, given that the binding energy is 2.71 eV
What quantum number of the hydrogen atom comes closest to giving a 100- nm-diameter electron orbit, What is the electron's speed in this state
Effusion describes, A) the process by which a gas spreads out through another gas B) the process that describes the collisiions that occur between gas molecules
All the following are postulates of the kinetic molecular theory of gases except A) the collisions between molecules are elastic. B) the gas molecules move randomly in straight lines in all directio
Which statement is true in regards to a half reaction in which reduction occurs? A)An electron is a product. B) An electron is a reactant. C) An electron is both a reactant and a product. D) Oxidati
A soap film whose index of re%uFB02ecetion is 1.33 is suspended in air. When sunlight strikes the film nearly perpendicularly, Find the thickness of the film
Two 2.0 cm x 2.0 cm square electrodes, spaced 0.4 mm apart, are connected to a 10 V battery. What is the charge on each electrode
3)Which statement describes the net ionic equation obtained between NaCl(aq) and KBr(aq). A) The net equation is Na+(aq)+ Br+(aq)= NaBr(s) B) All spectator ions cancel out, therefore there is no rea
A transformer has input voltage and current of 12 V and 6 A, and an output current of 0.8 A. how many turns are on the primary side
An elderly sailor is shipwrecked on a desert island but manages to save his eyeglasses. How far apart are the lenses when the telescope is adjusted for minimum eyestrain
A molecule, whose formula is AB, dissolves in water and also conducts electricity. What one statement best describes this molecule after it's placed in water. A)AB exists as a molecule only.
A 0.54 cm high object is placed 8.7 cm in front of a diverging lens whose focal length is -7.5 cm. What is the height of the image
An evacuated spherical diving bell containing a camera is in the ocean at a depth of 187 m. Find the magnitude of the total force on the port
A spaceship travels at a speed of 0.90c to a star that is 9.0 ly away. what is the distance travelled during the trip
If you have 15mL of 0.1 M NaC2H3O2, and the pH is 7.0. What would the Kb be for this reacton
A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by 34.0 dB. What is the intensity delivered to the eardrum