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A flywheel having constant angular acceleration requires 4.30 to rotate through 166. Find the angular acceleration of the flywheel
For an atom (mythical), there are three possible energy levels between which an electron can jump
A pump is used to send oil (density 800 kg/s) through a hose the diameter of which is 5 times that of the nozzle through which the water exits. what is the gauge pressure of the oil in the pump
n unmarked police car traveling a constant 95 km/h is passed by a speeder traveling 130 km/h. how much time passes before the police car overtake the speeder
An ?-particle has a charge of +2e and a mass of 6.64 × 10-27 kg. find the magnitude of the magnetic force on it
In a lightning bolt, a large amount of charge flows during a time of 2.9 x 10-3 s. Assume that the bolt can be represented as a long, How much charged has flowed during the lightning bolt?
The equation of a transverse wave on a string is y = (6.1 mm) sin[(30 m-1)x + (300 s-1)t], What is the wave speed
The function y(x, t) = (25.0 cm) cos(?x - 26?t), with x in meters and t in seconds, describes a wave on a taut string. What is the transverse speed for a point on the string at an instant
Suppose that a simple pendulum consists of a small 61 g bob at the end of a cord of negligible mass. find the pendulums maximum kinetic energy
Dissolved oxygen is oxygen that is trapped in a fluid, such as water. Since many living organisms requiresoxygen to survive, it is a necessary component of water systems such as streams, lakes and riv
Distillate (condensate) in four separate containers,~1mL in each, during the fractional distillation of 4mL of a (1:1) cyclohexane-toluene mixture, and then obtain IR spectra for each fraction
Mercury has the density of 13.6 g/cm3. what is the mass of a cylinder of mercury with a tube with an inside diameter of .45 cm and a height of 76.0 cm
(a) What is the rate of the reaction if the concentration of CH3Br is doubled? (b) What is the rate of the reaction if the concentration of NaOH is halved? (c) What is the rate of the reaction if th
At what optimum pH would you recommend to separate cytochrome C; pI 10.6 from a mixture od myoglobin; pI 7.0, ribonuclease; pI 7.8, and leucine; pI 6.0 using a Dowex 50 column? Explain.
a mixture of Phe (pI 5.5), Thr (pI 6.5), Asp (pI 3.0), His (pI 7.6), and Lys (pI 9.8) at pH 9.8 is loaded on an anion-exchange column and then eluted with a pH gradient of lowering pH. what order wi
A carpenter is driving a nail into a board. The 1.25 kg hammer moves at 8.85 m/s when it strikes the nail. find the increase in temperature of the nail after 3 blows from the hammer
A fisherman accidentally steps off the ledge of a 4.0 meter-high dock and falls into the lake below the dock. what is the fisherman's speed on entering the water
A carpenter is driving a nail into a board. The 1.25 kg hammer moves at 8.85 m/s when it strikes the nail. What is the change in length of the nail
An electron moving to the right at 1.0% the speed of light enters a uniform electric field parallel to its direction of motion. what direction is required for the electric field
Two point charges are placed on the x-axis. A charge -q is located at the origin, and a charge -2q is located at x = +d. at what location is the total electric potential zero
student is running at her top speed of 5.2m/s to catch a bus, which is stopped at the bus stop. For what distance does she have to run in that case
Calculate the cell potential for the following reaction as written at 61 °C, given that [Mg2 ] = 0.854 M and [Ni2 ] = 0.0100 M. If Mg(s)+Ni^2+ <--> Mg^2+ + Ni(s). E^o for Mg half-cell is -
Suppose that 100.0 mL of a 0.120 M solution of magnesium chloride is mixed with 100.0 mL of .210M sodium hydroxide. Assume that the volumes are additive (which is only approx correct) and calculate
Apply Newton's second law to the elevator and find the maximum upward acceleration for the elevator if the cables are not to break? Please Help Guys
what would happen if the bottle was labeled salicylic acid from benzene actually contained acetylsalicylic acid