18. when is an atom unlikely to react and form chemical bonds? 19. what is the order of the types of nuclear radiation from lowest to highest energy? 20. which statement is false? rewrite it so that it is true. a. fusion involves the combination of two smaller atoms into a larger atom. b. fission involves the splitting of an atom into smaller atoms. c. fission and fusion are two processes that release very little amounts of energy. 21. what naturally occurring radioisotope is used as the fuel for a nuclear reactor? 22. magnesium oxide is a binary ionic compound. from its formula, mgo, how do you know that mg is the metal? 23. on the periodic table, there are two numbers in the block for the element potassium, k: 19 and 39.098. what are the names of the numbers and what do they measure?
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Physics, 21.06.2019 18:00
How are momentum and impulse related? impulse is a whim to do something, while momentum keeps it going impulse is another name fore instantaneous momentum the impulse acting on and object is equal to the change of momentum it causes. the impulse that acts on and object is the momentum that results.
Answers: 2
Physics, 21.06.2019 19:50
An object is dropped from a tower, 400 ft above the ground. the object's height above ground t seconds after the fall is s(t)equals400 minus 16 t squared. determine the velocity and acceleration of the object the moment it reaches the ground. the velocity of the object the moment it reaches the ground is nothing ft/s.
Answers: 1
Physics, 22.06.2019 10:30
Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.
Answers: 3
Physics, 22.06.2019 16:00
What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass
Answers: 1
18. when is an atom unlikely to react and form chemical bonds? 19. what is the order of the types o...
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