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A grunting porpoise produces a sound of 78 Hz. Determine the wavelength of the sound in water, where the speed of sound is 1500 m/s? (Answer must in meters, enter the number value simply.
(i) Determine the velocity (magnitude and direction) of the second ball subsequent to collision.
The sum of digits of the three digit number is 12. Tens digit is 2 less than hundreds digit, and units digit is 4 less than sum of other two digits. What is the number?
In a experiment of double slit having 500 nm light, the slits each encompass a width of .1 mm i) When the interference fringes are 5 mm apart on a screen that is 4 m from the slits, find out the separ
What must the tension of E5 string of a violin is when the string is to be tuned to 660 Hz? The length of string from bridge to peg is 330mm. The string's mass per unit length is 0.38 g/m.
At the primary moment if the energy is shared uniformly by the inductor and capacitor, determine the charge on the capacitor?
Evaluate the pH of the solution resulting when 20.00 mL of 0.050M Lactic Acid is mixed with 10.00 mL of 0.020M Sodium Hydroxide.
At 0 C 100 g of ice is melted heated to 100 C and vaporized at that temperature. These changes are brought about by a heater that supplies heat at a constant rate of 1000 W.
A sample of low-fat milk which is having 2.50 mL, was treated with sodium oxalate, and the precipitate was filtered and dissolved in H2SO4. This solution required 6.20 mL of4.56 x 10-3
Hazardous waste (causes long-term environmental damage) requires to be monitored as it moves from its place of origin to the place where it might be stored. Suggest a list of standard operating proc
Fund A returned 2% profit and Fund B returned 6% profit. How much she invested in Fund B, if total profit from two funds together was $1200?
Explain the advantages of methane as a source of fuel in industrial and domestic applications. Are there any disadvantages?
Calculate the density of concentrated hydrochloric acid in g/mL when the concentrated aqueous HCl is sold as a 98% (w/w) HCl sol n, which corresponds to a molar concentration of 12.1 M HCl.
The following data represent a determination by comparison with the mass of oxygen as the reference gas of the "molar mass" of a sample of air.
Determine rate charged per hour by each mechanic if sum of two rates was $120 per hour? 1st mechanic- 2nd mechanic.
The element antimony has an atomic weight of 121.757 amu and only two naturally-occurring isotopes. One isotope has an isotope mass of 120.904 amu and abundance of 57.3%. Based on these data, Calcul
Explain which solution has the greatest freezing point change? Show calculations.Two solutions are prepared using the same solute:
When the two slits in a doubles-slit experiment each consist of a width of .08 mm and a spacing of .24 mm, determine how many interference peaks will lay in the central diffraction maximum by using
Suppose you want to make 12.0 dozen cookies so you decide to make these cookies in the batches of 24.0 cookies each and each batch needs 27.0 mL of vanilla extract. Each bottle of vanilla extract ha
U.S. national average passenger car "fuel economy" is about 25 miles per gallon. With this change in national fuel-economy standard, find percent increase in "energy efficiency?"
A charge of 16 C in a lightning bolt flows in a time of 1.5 x 10-3 s. Supposing that the lightning bolt can be expressed as a long, straight line of current, determine the magnitude of the magnetic
Explain the molecular geometry including the bond angles and give the expected hybridization of the central atom for Br3 and draw the Lewis Structure.
A small sterling silver bracelet has a volume of 7.33 ml and mass of 76.0g by water displacement. Determine the mass and %Ag and the mass and %Cu in the bracelet. Suppose the volumes to be linearly
A wave consists of a wavelength of 4.9x10^-7 m and a speed of 8x0^7 m/s in a specific material. i) Find out its frequency in the material in Hz?
A plane electromagnetic sin wave having a frequency of 17MHz travels in the free space.