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If each ofthese water molecules were enlarged to the the size of a billiardball (2.25 inches in diameter ) were stacked side-by-side on afootball field using only the in bounds area (120.00 yards by
An astronaut is rotated in a horizontal centrifuge at a radius of 7.5 m. (a) What is the astronaut's speed if the centripetal acceleration has a magnitude of 5.6g? (b) How many revolutions per minut
A jogger runs 100 m due west, then changes direction for the second leg of the run. At the end of the run, she is 175 m away from the starting point at an angle of 15.0 degrees north of west. What w
Calculate the mass of silver chloride, AgCl, and dihydrogen monosulfide, H2S, formed when 85.6 g of silver sulfide, Ag2S, reacts with excess hydrochloric acid, HCl.
A 1600 kg car is pulling a 375 kg trailer. Together, the car and trailer have an acceleration of 2.15 m/s2 directly forward. (a) Determine the net force on the car.
Protein A has a binding site for glucose with a Kd of 10-5M.Protein B has a binding site for glucose with a Kd of 10-7 M. Which protein has a higher affinity for glucose? Explain your reasoning.Als
A golf ball is dropped from rest from a height of 9.30 m. It hits the pavement, then bounces back up, rising just 5.80 m before falling back down again. A boy then catches the ball when it is 1.00 m
A Person stands at the base of a hill that is a straight incline making an angle phi with the horizontal. For a given initial speed v0, at what angle theta should objects e thrown so that the distan
What are the units of the rate constant k for this reaction? What would happen to the rate if [M] were doubled? What would happen to the rate if [O2] weredoubled? Would these 2 rates stay the same,d
A 3.81-kHz tone is being produced by a speaker with a diameter of 0.217 m. The air temperature changes from 0 to 29.8 oC. Assuming air to be an ideal gas, find the change in the diffraction angle .
The density of aluminum is 2.702g/cm3. What is the final liquid level of water if 32.04g of aluminum is dropped into a graduated cylinder containing 15.90mL of water?
A 15 kg mass starts from rest and slides down an inclined plane 8.0 x 10-1 m long in 0.7 s. What net force is acting on the mass along the incline?
A ball has a mass of 0.5kg. dropped from a cliff top, the ball hits the sea below at a speed of 10./s. a) what is the kinetic energy of the ball as it is about to hit the sea?
A particle of charge +18 µC and mass 5.00 x 10-5 kg is released from rest in a region where there is a constant electric field of +360 N/C. What is the displacement of the particle after a tim
Osmosis is the process responsible for carrying nutrients and water from groundwater supplies to the upper parts of trees. The osmotic pressures required for this process can be as high as 20.1 atm.
A protein subunit from an enzyme is part of a research study andneeds to be characterized. A total of 0.160 g of this subunitwas dissolved in enough water to produce 2.00 ml ofsolution.
The string has a linear mass density of 0.01 kg/m, and the tension in the string is supplied by a mass hanging from one end. If the string vibrates in its third harmonic, calculate the following
Consider the second-order reaction A--->B. The concentration of A decreases from 0.95 M to 0.44 M in 11 min. What will be the concentration of A after 21 minutes have elapsed?
Why does the second acetyl group enter the unoccupied ring toform diacetyl ferrocene? The question is asked regarding the reaction that occurs toform acetyl ferrocene (ferrocene molecules have two r
If the string is displaced 1.90 mm at its midpoint and released to produce this note, what are the wave speed, v, and the maximum speed, Vmax, of the midpoint of the string?
How many grams of ethylene glycol,C2H4(OH)2, are needed per kilogramof water to protect radiator fluid against freezing down to-10°C?
A galvanic cell consits of a cadmium cathode immersed in aCdSO4 solution and a zinc anode immerse in aZnSO4 solution. A salt bridge iconnects the two half-cells. Write a balanced equation.
A cylinder with a movable piston contains gas at a temperature of 27 degrees celsius, a volume of 1.50m3, and an absolute pressure of .200x10^5 Pa. What will be its final temp if the gas is compress
The generator at a power plant produces AC at 48,000 V. A transformer step this up to 345,000 V for transmission over power lines. If there are 1000 turns of wire in the input coil of the transforme
The mass spectrum of a hypothetical element shows that 86.19% of the atoms have a mass of 27.977 u, 0.825% have a mass of 28.976 u, and the remaining have a mass of 29.974 u.