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A bird lands on a bare copper wire carrying a current of 15 A. The wire is 8 gauge, which means that its cross-sectional area is 0.13 cm2. (a) Find the difference in potential between the bird's feet, assuming they are separated by a distance of 6.9 cm.
Two people stand 3 m away from a large plane mirror and spaced 3.8 m apart in a dark room. At what angle of incidence should one of them shine a flashlight on mirror so that the reflected beam directly strikes the other person.
A converging lens with a focal length of 5.00 cm is placed 20.00 cm in front of a concave mirror whose focal length is also 5.00cm. Calculate the position of the final image formed by the system
a flat surface having an area of 3.6 m2 is rotated in a uniform electric field of magnitude e 6.3 x 105 nc. determine
A distant galaxy is moving away from the earth with a speed that results in each wavelength received on the earth being shifted so that ??= 1.65 ?0
A spring with spring constant k = 210N/m is at first compressed x = 1.90 cm. It is now allowed to relax back to its equilibrium length and then it is stretched an additional 2.30 cm. How much work is completed by the spring during this process.
A 667 kg satellite is in acircular orbit about the Earth at a height above the Earth equal tothe Earth's mean radius. Find the gravitational force acting on it
Water drops from the nozzle of a shower onto the floor a distance d below. The drops fall at regular intervals of time, Find the location of the individual drops
1. you are hired by an industry that owns a building with a floor area of 6 m by 10 m and a ceiling height of 4 m. the
An airtight container having a lid with negligible mass and an area of 101 cm2 is partially evacuated. what is the air pressure in the container before it is opened
A 31.0-kg crate rests on a horizontal floor, and a 72.5-kg person is standing on the crate. Determine the magnitude of the normal force that the crate exerts on the person
An electron moves into a uniform magnetic field B = 0.182mT with initial speed with v = 12000m/s, What is the radius of the helical motion
Objects with masses of 295 kg and a 595 kg are separated by 0.300 m. Find the net gravitational force exerted by these objects
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