Physics, 30.03.2020 17:21 sundayrider101
Birds resting on high-voltage power lines are a common sight. A certain copper power line carries a current of 85.8 A, and its resistance per unit length is 14.4 × 10−5 Ω/m. If a bird is standing on this line with its feet 15 cm apart, what is the potential difference across the bird’s feet? Answer in units of V.
Answers: 3
Physics, 22.06.2019 13:30
The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?
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Physics, 22.06.2019 16:30
Which magnetic property best describes a magnet’s ability to act at a distance? magnets are dipolar. magnets attract only certain objects. magnets have magnetic fields. magnets can transfer their properties to certain materials.
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Physics, 22.06.2019 22:00
Use 4 to 5 complete sentences, explain the concepts of beats and how beats are produces.
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Physics, 22.06.2019 23:40
What is the magnitude of the gravitational force acting on the earth due to the sun?
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Birds resting on high-voltage power lines are a common sight. A certain copper power line carries a...
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