Calculate the mass of sodium acetate that must be
Calculate the mass of sodium acetate that must be added to 500.0 mLof .2 M acetic acid to form a pH = 5.00 buffer solution.
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Point A is located 0.75 m away from a charge of -3.90 x 10-9 C. Point B is located 0.35 m away from the charge. What is the electric potential difference VB - VA between these two points?
A steady horizontal force F of magnitude 21 N is applied at the axle of a solid disk as shown. The disk has mass 2.0 kg and diameter 0.10 m. What is the linear speed of the center of the disk after it has moved 12 m?
A single plate clutch consists of a pair of contacting surfaces. Calculate the power transmitting capacity of the clutch at 500r.p.m using:
A marble spins in a vertical plane around the inside of a smooth, 20-cm-diameter horizontal pipe. The marble's speed at the bottom of the circle is 3.0 m/s. A) What is the marble's speed at the top?
What wavelength is required to get 5 standing wave segments on a doubly fixed string of length 0.75m? If the velocity v is 50m/s, what will be the frequency of this wave?
Suppose that the electric potential outside a living cell is higher than that inside the cell by 0.069 V. How much work is done by the electric force when a sodium ion (charge = +e) moves from the outside to the inside?
A 1 kg sample of nitroglyceride C3H5N3O9 explodes and releasesgases with the temperature of 1985 celcius at 1 atm. What is the volume of gas produced?
Calculate a 95% confidence interval for the coefficient of height, and interpret it in the context of the data. One tree sample is 79 feet tall, has a diameter of 11.3 inches, and is 24.2 cubic feet in volume. Determine if the model overestimates or
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