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What is the molarity of a nitric acid solution if 25.00 mL of HNO3 is required to neutralize 0.424g of sodium carbonate (105.99 g/mol)?
2HNO3(aq) + Na2CO3(s) --> 2NaNO3(aq) + H2O(l) + CO2(g)
A.0.0800 M
B.0.100 M
C.0.160 M
D.0.200 M
E.0.320 M
A friend of yours is loudly singing a single note at 380 Hertz while racing toward you at 24.4 m/s on a day when the speed of sound is 341 m/s. Determine what frequency do you hear
A rock is dropped off the side of a bridge and hits the waterbelow 2s later. What was the rock's velocity when it hit the water
A farsighted man uses eyeglasses with a refractive power of 3.22 diopters. Wearing the glasses 0.026 m from his eyes
Suppose you are observing a light wave traveling down a thin transparent fiber. Let A = 5V/m; let ? = 10 µm.
A ball of mass 0.40 kg is fired with velocity 140 m/s into the barrel of a spring gun of mass 2.1 kg initially at rest on a frictionless surface. What fraction of the ball's initial kinetic energy is stored in the spring
John's mass is 86 kg, and Barbara's is 55 kg. He is standing on the x axis at xJ = +9.0 m, while she is standing on the x axis at xB = +2.0 m. They switch positions. How far and in which direction does their center of mass move as a result of the ..
Oscillation of a 500 Hz tuning fork sets up standing waves in a string clamped at both ends. The wave speed for the string is 430 m/s. What is the length of the string
A coin slides over a frictionless plane and across an xy coordinate system from the origin to a point with xy coordinates (3.0 m, 3.7 m) while a constant force acts on it. The force has magnitude 1.7 N and is directed at a counterclockwise angle o..
A capacitor consists of a set of two parallel plates of area A separated by a distance d. find the magnitude of the charge on the plates
The atomic mass of 5626Fe is 55.934939 u, How much kinetic energy will the products of the decay have
A styrofoam ball of mass 0.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspended
A ball rolls off the edge of a horizontal tabletop, 1.70 m high. It strikes the floor at a point 1.49 m horizontally away from the edge of the table. What was its speed at the instant it left the table
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