Physics, 16.09.2019 16:20 OwONuzzlez
plutonium-239 is a radioactive isotope commonly used as fuel in nuclear reactors. the half-life of plutonium-239 is 24,100 years. about how long would it take 504 grams of plutonium-239 to decay until there were only 63 grams plutonium-239 left?
Answers: 1
Physics, 21.06.2019 18:00
What is the magnification of a real image if the image is 10.0 cm from a mirror and the object is 50.0 cm from the mirror ? use the equation m=-di/do. a. -5.0 b. 5.0 c. 0.20 d. -0.20
Answers: 1
Physics, 22.06.2019 10:00
Amira pulls a 3 pound wagon 4 feet. how much work has she done?
Answers: 2
Physics, 22.06.2019 17:40
Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.
Answers: 2
Physics, 22.06.2019 19:00
The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.
Answers: 1
plutonium-239 is a radioactive isotope commonly used as fuel in nuclear reactors. the half-life of...
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