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Q1. If the weight of a room full of water is so great, why don't the first floors of houses built over basements all collapse while flooded to the ceiling?
Q2. An electron moves in a circular path perpendicular to a magnetic field that has a magnitude of 0.883 × 10-3 T. The angular momentum of the electron as it moves around the center of the circle is 1.40 × 10-25J•s.Find the radius of the circular path.
Explain answer in units of m
A curve of radius 152 m is banked at an angle of 11°. An 722-kg car negotiates the curve at 86 km/h without skidding. avoid the effects of air drag and rolling friction.
Firemen are shooting a stream of water at a burning building. A high-pressure hose shoots out the water with a speed of 23.0m/s as it leaves the hose nozzle. How high above the ground does the water strike the building
A balloon, which is negatively charged by rubbing,clings to a wall. why does the balloon eventually fall
A certain corner of a room is selected as the origin of a rectangular coordinate system. what is the distance of the fly from the corner of the room
The left end of a long glass rod 8.00 cm in diameter, with an index of refraction of 1.60, Find position in air of image if the left end of the rod were polished to a plane surface
An aircraft weighing 819 N is accelerated at 11.7 m/s2 for 5 seconds, at which time the aircraft launches. What is the force required to launch the aircraft
The athlete shown in the figure rotates a 1.00 kg discus along a circular path of radius 1.07 m. find the magnitude of the maximum radial acceleration of the discus
A single conservative force acts on a 5.30-kg particle within a system due to its interaction with the rest of the system, calculate the work done by this force on the particle
You shine a laser on a plastic prism made from an unknown material and measure the angles relative to the normal that the light takes both inside and outside the medium. What is the index of refraction of the plastic object
What is the acceleration experienced by 0 tip of the 1.50 cm long sweep second hand on your wrist watch? In M/s^2.
One displacement vector A has magnitude of 2.78 km and point due north. Another displacement vector B has a magnitude of 7.40 km and also points due north. Provide diagrams and calculate the magnitude and direction of A+B, B-A, A-B.
An object is five focal lengths from a concave mirror. How do the object and image heights compare
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