Ball thrown relative to the ground
A ball is tossed into the air at a speed of 64.0 m/s at an unknown angle. If the ball is observed to rise to a maximum height of 7.80 m, at what angle was the ball thrown relative to the ground?
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An otherwise empty 2.50 L flask and heated to 200.°C, the pressure in the flask gradually rose to 1.63 atm and remained at that value. Calculate K for this reaction.
Two tiny spheres are identical and carry charges of -30.0 uC and +60.0 uC. They are seperated by a distance of 14.0 cm. What is the magnitude and direction of the electric field at a point midway between the two charges?
Assuming that the total pressure of the gases is 1.34atm and that their mole ratio is 94 : 4.0 : 1.5 : 0.50, calculate the partial pressure (in atmospheres) of each gas ?
The areas listed below and analyze how each area's relationship to global trade patterns changed from 1750 to the present. Be sure to describe each area's involvement in global patterns around 1750 as your starting point.
Discuss the economic and social factors that gave rise to the totalitarian systems of communism and fascism in the 20th century.
A rock of mass 33 kg accidentally breaks loose from the edge of a cliff and falls straight down. The magnitude of the air resistance that opposes its downward motion is 242 N. What is the magnitude of the acceleration of the rock?
A penny is placed at the outer edge of a disk radius = .150 m that rotates about an axis that is perpendicular to the plane of the disk at the center. The period of the rotation is 1.80 s. Find the minimum coefficient of friction neccesary to allo
A phosphate concentration of 1.5 mmol m-3. Which of these nutrients is likely to limit production if the light supply is adequate and there is no nitrogen fixation?
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