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A capacitor is consists of two short sections of parallel wires in air. One wire is found to be of the voltage of 58 V, What is the capacitance of the two wires
Amtrak's 20th-Century Limited is en route from Chicago to New York at 120km/h, How far was the train from the cow when the engineer first applied the brakes
A method for determining the quantity of dissolved oxygen in natural waters requires a series of redox reactions. Balance the following chemical equations in that series under the conditions indicat
A hockey puck moving at 33m/s slams through a wall of snow 38cm thick. It emerges moving at 19m/s. find the thickness of a snow wall
In a serve, a tennis player hits the ball horizontally. Neglect the effects of air resistance and the diameter of the ball. Where will the ball land if it just clears the net
The vapor pressure of liquid Nickel at 1606° C is 0.100 torr, whereas at 1805° C, its vapor pressure is 1.000 torr. At what temperature does the liquid have a vapor pressure of 2.500 torr
Jack and John are standing 6m apart from each other playing soccer. Jack kicks the ball to John and John kicks it back immediately. find the speed of the ball when it's kicked back to Jack
Complete and balance the following neutralization reaction, name the products, and write the net ionic equation.
A small droplet of oil with mass of 4.81×10-15 kg is held suspended in a region of uniform electric field directed upward with a magnitude of 7025 N/C
If a toaster is plugged into a source of alternating voltage with an rms value of 67 V, an rms current of 3.06 A occurs in the heating element. What is the average power input to the toaster
Given the following equation, how many grams of PbCO3 will dissolve when 5.0 L of 1.50 M H+ is added to 6.00 g of PbCO3
The Barringer meteor crater in northern Arizona is 180 m deep and 1.2 km in diameter. what was the meteor's speed at impact
Write a net ionic equation accounting for this. For the reaction in part a, write the equilibrium constant expression and calculate the equilibrium constant from a consideration of Kb and Kw.
When the following equation is balanced using the smallest possible integers, what is the number in front of the substance in bold type. Na2S2O3 + I2 ? NaI + Na2S4O6
Under what conditions would all three hydrogens be removed from H3PO4. I think it would need a strong base and high molarity.
Assuming that the reaction occurs at constant pressure, how much heat is released. substance - heat of formation kJ/mol C(s)- 718.4 CF4 (g)- (-679.9) CH4 (g)- (-74.8) H (g)- 217.94 HF (g)- (-268.61)
A typical color television draws about 2.9 A when connected to a 150 V source. What is the efiective resistance of the T.V. set
How many moles of O2 are required for the complete reaction of 43.5 g of C2H4 to form CO2 and H2O
220 cm3 of hot tea at 89°C are poured into a very thin paper cup with 70 g of crushed ice at 0°C. Calculate the final temperature of the "ice tea"
You rub an inflated balloon on the carpet and it acquires a potential that is 1560 V lower than its potential before it became charged. what is the net charge on the balloon
An athlete wants to acquire red blood cells from a donor with the same blood type. Taking into consideration that blood is composed of three components, plama, red blood cells, and leukocytes. what
How many grams of can be produced from 3.15 of. Express your answer numerically in grams.
A cosmic-ray proton is moving at such a speed that it can travel from the Moon to Earth in 1.5s. At what fraction of the speed of light is the proton moving