Which statement accurately describes the charge of the nucleus of an atom? the nucleus can be either positively charged or neutral. the nucleus never has an electrical charge. the nucleus always has a positive charge. the charge of a nucleus can change from positive to negative.
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Physics, 21.06.2019 20:30
Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground
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Physics, 22.06.2019 05:10
Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.
Answers: 3
Physics, 22.06.2019 06:30
Apebble is thrown into a calm lake, ripples are formed from the center and move outward. the water particles in the lake travel in a circular pattern that moves up and down on the surface of a lake, and the energy travels a) diagonally. b) downward. c) horizontally. d) upward.
Answers: 2
Physics, 22.06.2019 08:00
If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles
Answers: 2
Which statement accurately describes the charge of the nucleus of an atom? the nucleus can be eith...
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