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Hydrogen peroxide decomposes in water by a first order process. A 0.156 M solution of H2O2 decomposes with an initial rate of 1.14E-5 M/s. what is the rate constant for the decomposition reaction? What is the half life? how long will it take for the reaction to be 87.5% complete?
Two equally charged, 1.00 {rm g} spheres are placed with 2.00 {rm cm} between their centers. When released, each begins to accelerate at 225 {rm m/s^2}. What is the magnitude of the charge on each sphere.
question a 43-kg girl is bouncing on a trampoline. during a certain interval after leaving the surface of the
Carbon 12 is defined such that 12g is one mole. So if a diamond is 37.5 g, how many moles of carbon are in it? How many molecules of carbon are in it
Assume a spacecraft is orbiting the earth at a constant radius of 7.00x10^3km. At t=0 a lateral rocket is fired that imparts an inward-directed radial velocity. What is the minimum radial velocity needed to produce a parabolic trajectory, and what wi..
You are working in a shoe test lab measuring the coefficient of friction for tennis shoes on a variety of surfaces. What is the coefficient of dynamic friction between the shoe and the material
A large turntable rotates about a fixed vertical axis, making one revolution in 5.00 s. What is the angular speed of the turntable when the child is 2.50 from the center, assuming that you can treat the child as a particle
A 30 g steel ball bounces elastically on a steel plate, always returning to the same maximum height h = 14.2 m. What is the time interval between bounces
The springs of a 1200 kg car compress 6.5 mm when its 68 kg driver gets into the driver's seat. If the car goes over a bump, what will be the frequency of vibrations?
An interference filter has an effective bandwidth of 10 nm. Would it be feasible to employ such a filter to isolate the calcium emission line at 422.7 nm from the potassium emission line at 404.4 nm? Assume that the signals are triangular in shape. S..
A length of wire has a total resistance of 120 ?. If cut up into N identical pieces, How many pieces did the original wire get cut up into
a ball rolls off a platform that is 7 meters above the ground. the balls horizontal velocity as it leaves the platform
A wave in which the disturbance is perpendicular to the direction of travel of the wave is a... Two waves of equal amplitudes traveling in opposite directions pass through each other. After they have passed through each other, their amplitudes have..
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