In the formation of the compound magnesium oxide (Mgo),
A
a magnesium atom donates two electr...
In the formation of the compound magnesium oxide (Mgo),
A
a magnesium atom donates two electrons to an oxygen atom.
B
an oxygen atom shares one electron with a magnesium atom.
С
a magnesium atom shares two electrons with an oxygen atom.
D
an oxygen atom donates one electrons to a magnesium atom.
Answers: 2
Physics, 21.06.2019 15:00
Aparticle moves according to a law of motion s = f(t), 0 ≤ t ≤ 12, where t is measured in seconds and s in feet. f(t) = cos(πt/6) (a) find the velocity at time t (in ft/s).
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Physics, 21.06.2019 17:30
Acatapult is tested by roman legionnaires. they tabulate the results in a papyrus and 2000 years later the archaeological team reads (distances translated into modern units): range = 0.4 km; angle of launch = π/5 rad; landing height = launch height. what is the initial velocity of launch of the boulders if air resistance is negligible?
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Physics, 21.06.2019 19:00
When the velocity of an object is doubled, by what factor is its momentum changed? by what factor is its kinetic energy changed? a) the momentum is zero. b) the momentum is not zero. c) difficult to say.
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Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine
Answers: 1
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