If you have a 550 gram sample of
carbon-14 how much remains after 7 half-lives....
Physics, 06.05.2020 19:18 traphard979
If you have a 550 gram sample of
carbon-14 how much remains after 7 half-lives.
Answers: 2
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Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy
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Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?
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The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?
Answers: 3
Physics, 22.06.2019 22:50
The illuminance of a surface varies inversely with the square of its distance from the light source. if the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters, by how many meters should the distance of the surface from the source be increased to reduce its illuminance to 30 lumens per square meter?
Answers: 3
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