Physics, 30.08.2019 22:30 alexis123420
Which of the following parts of john dalton’s atomic theory, if correct, would have made it impossible for marie curie’s discovery that new elements can be produced when elements are bombarded with neutrons?
all matter is made of atoms.
the atom is the smallest particle of matter.
atoms of the same element are different from atoms of other elements.
chemical change involves the rearrangement of atoms.
Answers: 3
Physics, 22.06.2019 11:00, jackiemiranda2010
Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line
Answers: 2
Physics, 22.06.2019 15:30, haha81
Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.
Answers: 2
Physics, 23.06.2019 01:00, freshboiced7
Which statement is true about an object that is moving in a circular motion due to centripetal force, f, when the radius of its circular motion is doubled? the new force then becomes equal to 2f the new force then becomes equal to f the new force then becomes equal to f/2 the new force then becomes equal to f2 the new force then becomes equal to 1/f
Answers: 1
Which of the following parts of john dalton’s atomic theory, if correct, would have made it impossib...
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