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a) Nitrogen and hydrogen react to give ammonia in a combination reaction. Write and balance the equation.
(b) Electrolysis can decompose KCl into its elements. Write and balance the equation.
The lengths of the three telescopes are LA = 434 mm, LB = 653 mm, Find the angular magnification of each telescope
Calculate the intrinsic carrier concentration, ni, at 200 and 400 K for Ge and GaAs knowing that ni at 300 K for Ge and GaAs has a value of 2.4 x 1013 cm-3, and 1.79 x 106 cm-3, respectively.
A child exerts a tangential 42.2 N force on the rim of a disk shaped merry go round with a radius of 2.40 m. what is its mass
A fully loaded Boeing 767 jetliner has a mass of 180,000 kg. Starting from rest, it accelerated down the runway and reaches a takeoff speed of 270 km/h in 35 seconds. What engine power is required for this take off?
A potential difference of 100 mV exists between the inner and outer surfaces of a cell membrane. How much work is required to eject a positive sodium ion
consider a refracting telescope with an objective lens of focal length fobj 1.4 m and an eyepiece with focal length
An electron enters a region of constant electric field that is produced by a parallel-plate capaci- tor, find the velocity of the electron when it exits the capacitor
A major motor company displays a die-cast model of its first automobile, made from 6.60 kg of iron. What mass of gold is needed to make the new model
Let B = the magnitude of the magnetic field of an EM wave; f = the frequency of the wave; and c = the speed of light. What is the magnitude of the electric field E?
King Arthur's knights use a catapult to launch a rock from their vantage point on top of the castle wall, How far from the castle wall does the launched rock hit the ground
A sky diver of mass 53 kg can slow herself to a constant speed of 92 km/h by orienting her body horizontally, looking straight down with arms and legs extended. What is the magnitude of the drag force on the sky diver
question1a cylindrical 3.52 kg pulley with a radius of 0.360 m is used to lower a 4.45 kg bucket into a well. the
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