Physics, 09.12.2020 22:40 mckenziet73
2. A large rock is ejected from a volcano with a speed of 30m/s and at an angle 60. above
the horizontal. The rock strikes the side of the volcano at an altitude of 10.0m lower than
its starting point. Calculate the horizontal displacement of the rock.
84.90m
Answers: 1
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Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f
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(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present
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Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2. how much is the spring compressed x from its natural length? 1) x = v0*sqrt(k/(mg)) 2) x=v0*sqrt(m/k) 3) x=v0*((mk)/g) 4) x=v0*sqrt(k/m) 5) x=v0*(m/kg) 6) x=v0*sqrt((mg)/k) 7) x=(v0)^2/(2g) 8) x=v0*(k/(mg)) 9) x=(v0)^2/(2m) 10) x=v0*((mg)/k)
Answers: 3
2. A large rock is ejected from a volcano with a speed of 30m/s and at an angle 60. above
the horiz...
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English, 20.11.2019 23:31