What speed keeps the cylinder at rest problem
A puck of mass m = 1.00 kg slides in a circle of radius r = 23.0 cm on a frictionless table while attached to a hanging cylinder of mass M = 3.80 kg by a cord through a hole in the table. What speed (in m/s) keeps the cylinder at rest?
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Four balls, each of mass m, are connected by four identical relaxed springs with spring constant k. The balls are simulataneously given equal initial speeds v directed away from the center of symmetry of the system.
The rate of a particular reaction quadruples when the temperatureis increased from 20.°C to38°C. Calculate the activation energy for this reaction.
What does the change from exponential growth to linear growth indicate about the long-term concentration in the atmosphere.
Describe procedure for preparing 250 ml of buffer solution with apH of 5.00 from acetic acid (CH3COOH) and sodium acetate. How many grams of acid you have to mix with 3.6 grams of sodium acetate.
Find the annual percentage yield (APY) for a savings account with annual percentage rate of 3% compounded quarterly.
Calculate the fraction of the principal species in the solution by mixing 0.1Mleucine and 0.1M NaOH, and the pH of that solution.
When carbon is burned in air, it reacts with oxygen to form carbondioxide. When 12.0 g of carbon were burned in the presence of48.0 g of oxygen, 16.0 g of oxygen remained unreacted.
Two planes leave the same airport at the same time. One flies at at 20 degrees east of north at 500 miles per hour. How far apart are the planes after 2 hours?
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