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Physics, 22.06.2019 07:30
30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve
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Physics, 22.06.2019 09:00
One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form
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Physics, 23.06.2019 02:00
Estimate the kinetic energy of mars with respect to the sun as the sum of two terms, that due to its daily rotation about its axis, and that due to its yearly revolution about the sun. (assume mars is a uniform sphere with mass = 6.4Ă—10 to the power of 23 kg, radius = 3.4Ă—10 to the power of 6 m, rotation period = 24.7 hours, orbital period = 686 days and is 2.3Ă—10 to the power of 8 km from the sun.)
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Physics, 23.06.2019 09:30
A0.25 kg arrow is moving at 5 m/s and hits a 0.10 kg apple. the apple sticks to the arrow, and both move to the right together. what is their velocity?
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Aball is thrown upward with a initial velocity of 20m/show high will it go . how long will it reach...
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