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A 1.53 kg ball is attached to a ceiling by a 3.06 m longstring. The height of the room is 5.12 m. The acceleration of gravity is 9.8 m/s2.What is the gravitational potential energy associated with theball relative to the ceiling? Answer in J.What is the gravitational potential energy relative to the floor? Answer in J.What is its gravitational potential energy relative to a pointat the same elevation as the ball? Answer in J.
Two identical small insulating balls are suspended by separate0.211 m threads that are attached to a common point on the ceiling. Each ball has a mass of 8.06E-4 kg. Initially the balls areuncharged and hang straight down.
A singly ionized helium atom (He+) has only one electron in orbit about the nucleus. What is the radius of the ion
A centrifuge is a device in which a small container of material is rotated at a high speed on a circular path. How many revolutions per minute is the sample making
A wave has a known propagation velocity of 4.32 m/s and a wavelength of 0.388 meters. What is the position equation of the wave
A man can row a boat at a speed of 7.45 km/h in still water. If he is crossing a river where the current is 2.00 km/h, find what direction should his boat be headed
Let us take half the terminal speed as a reasonable "upper bound" beyond which we should not use our constant acceleration free-fall relationships.
A battery is designed to have an EMF of 12.0V. When the battery is connected to an unknown resistor in series the terminal voltage drops down to 10.0V. what is the value of the unknown resistor
If the rms electric field of this light is 16.0N/C at a distance of 1.30m from the bulb, what is the average total power radiated by the bulb
If the elastic limit of steel is 5.0 multiplied by 108 Pa, determine the minimum diameter a steel wire can have
An astronaut on the planet Zircon tosses a rock horizontally with a speed of 6.95 . The rock falls through a vertical distance of 1.20 and lands a horizontal distance of 8.65 from the astronaut. What is the acceleration of gravity on Zircon?
A light ray is incident upon a plane interface between two materials. The ray makes an incident angle with the normal to the surface of 39 degrees in a material, find thev refracted angle (in degrees) in that material
A nuclear power plant has a power output of 1004 MW and operates with an efficiency of 32%. If excess heat is carried away from the plant by a river with a flow rate of 1e6 kg/s, what is the rise in temperature of the flowing water?
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