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A spherical balloon has a radius of12.5m, and is filled with helium. How large a cargo can it lift, assuming that the skin and structure of the balloon have a mass of600kg? Neglect the bouyant force on the cargo volume itself.
kg
A stone is thrown from the top of a cliff 150 m above the ground, What is the speed (magnitude of velocity) of the stone when it hits the ground
You are designing a process to store pressurized argon gas (a monatomic gas). If you pressurize the gas at a constant temperature, how much work must be done on the gas
What is the CD's moment of inertia for rotation about a perpendicular axis by the edge of the disk.
To see that it is easy to break a thighbone when falling in this fashion, find out the greatest distance through which his center of gravity can fall without his breaking a bone.
A dare devil is shot out of a cannon at 45.0 degrees to the horizontal with an initial speed of 25.0 m/s. A net is positioned a horizontal distance of 50.0 m from the cannon.
A hockey puck of mass m = 150 g is attached to a string that passes through a hole in the center of a table, what speed must the hockey puck have
A coin 2.1 cm in diameter is held 25 cm from a concave spherical mirror of 28 cm radius of curvature. What is the diameter of the image
Calculate the force a piano tuner applies to stretch a steel piano wire 8.10 mm, if the wire is originally 0.850 mm in diameter and 1.30 m long
A horizontal light ray is incident on a crown glass prism as shown in the figure below where ? = 42.5°. Find the angle of deviation ? of the ray-the angle
Abolt comes loose from underneath an elevator that is moving upward at a speed of 6.1 m/s. what is the speed of the bolt when it hits the bottom of the shaft
A 150 pF capacitor is charged to a potential difference of 64 V, and the charging battery is disconnected. what is the capacitance of this second capacitor
an inductor having a reactance of 25 Ohms and resistance R gives off heat at the rate of 16.0 watts when it carries a current 0.500 A (rms) what is the impedance of the inductor
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