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A spherical balloon has a radius of 12.0m, and is filled with helium. How large a cargo can it lift,assuming that the skin and structure of the balloon have a mass of1200 kg? Neglect the bouyant force onthe cargo volume itself.
A transparent oil with index of refraction 1.18 spills on the surface of water (index of refraction 1.33), determine the thickness of the oil slick
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, elucidate at what angle was the ball thrown relative to the ground?
The gravitational acceleration at the surface of a planet is 18.5 m/s2. Find the acceleration at a height above the surface equal to half the radius of the planet.
A plane is headed eastward at a speed of 156 m/s. A 20.0 m/s wind is blowing southward at the same time as the plane is flying. what is The velocity of the plane relative to the ground
A 100kg hollow sphere is neutrally buoyant and completely underwater. Its volume is 0.5 cubic meter. what fraction of this volume is helium
Two equally charged, 1.00 g spheres are placed with 2.00 cm between their centers. What is the magnitude of the charge on each sphere
The drawing below shows two situations in which charges are placed on the x and y axes. determine the magnitude of the net electric field at the origin
You would like to produce an electric field of 640 N?C in theregion between two parallel plates that are separated by a distanceof 0.16m. What voltage should you connect across the plates?
A firefighting crew uses a water cannon that shoots water at 29.0m at a fixed angle of 52.0 degrees above the horizontal. How far from the building should they position their cannon
A Carnot engine operates with an efficiency of 25.0% when the temperature of its cold reservoir is 263 K. Assuming that the temperature of the hot reservoir remains the same, what must be the temperature of the cold reservoir in order to increase ..
Transcranial magnetic stimulation (TMS) is a noninvasive technique used to stimulate regions of the human brain. Determine the induced emf within a circle of tissue of radius 1.9 mm and that is perpendicular to the direction of the field
A heater coil connected to a 220V ac line has a resistance of 42.1Ohm. What is the average power used, What is the maximum value of the instantaneous power
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