Physics, 27.11.2020 23:00 nkidane2802
Two high precision pendulums move through their equilibrium positions once each second, so that the periods of each is precisely 2.000 s. One of them is in St. Petersburg, Russia and has a length of 0.99548 m. The other is in Quito, Ecuador and has a length of 0.98963 m. What is the ratio of the free-fall acceleration of gravity g at these two cities
Answers: 3
Physics, 21.06.2019 20:40
If an object with an initial temperature of 300 k increases its temperature by 1°c every minute, by how many degrees fahrenheit will its temperature have increased in 10 minutes? (a) 6°f (b) 10°f (c) 18°f (d) 30°f
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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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Physics, 22.06.2019 14:30
Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?
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Physics, 22.06.2019 17:50
Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system
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Two high precision pendulums move through their equilibrium positions once each second, so that the...
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