Aballoon rubbed against denim gains a charge of −8.0 µc. what is the electric force between the balloon and the denim when the two are separated by a distance of 6.0 cm? (assume that the charges are located at a point.) the value of the coulomb constant is 8.98755 × 109 n · m2 /c 2 . include direction of the force. answer in units of n.
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Physics, 22.06.2019 10:00
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Physics, 22.06.2019 12:10
Two forces produce equal torques on a door about the door hinge. the first force is applied at the midpoint of the door; the second force is applied at the doorknob. both forces are applied perpendicular to the door. which force has a greater magnitude?
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An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )
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The velocity of sound wave in air at 35°c is 353m/s, calculate the velocity of sound at 46°c
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Aballoon rubbed against denim gains a charge of −8.0 µc. what is the electric force between the ball...
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