Physics, 27.10.2020 22:50 saraaaaaaaa20
Cora wants to draw a model of an atom for her project for the science fair. She wants to draw an atom that has two protons, four neutrons, and two electrons. Which model is like Cora’s?
At the center, 2 unmarked red balls are interspersed with 4 blue balls marked with plus signs. A green cloud with 1 concentric white line surrounds the center, with 2 small green balls marked with minus signs on the white line.
At the center, 4 unmarked red balls are interspersed with 2 blue balls marked with plus signs. A green cloud with 1 white line surrounds the center, with 2 small green balls marked with minus signs on the white line.
At the center, 2 unmarked red balls are interspersed with 2 blue balls marked with plus signs. A green cloud with 1 white line surrounds the center, with 4 small green balls marked with minus signs on the white line.
At the center, 4 unmarked red balls are interspersed with 2 blue balls marked with plus signs. A green cloud with 1 white line surrounds the center, with 4 small green balls marked with minus signs on the white line.
Answers: 1
Physics, 22.06.2019 02:30
Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.
Answers: 2
Physics, 22.06.2019 06:20
Oxygen undergoes an isentropic expansion from 120 degree c and 280 kpa absolute to 140 kpa absolute. determine the final temperature of the oxygen and the amount of work per kg of o_2 produced in the process if it is adiabatic.
Answers: 1
Physics, 22.06.2019 09:30
True or false graphs must include scales that increase by the same amount
Answers: 3
Cora wants to draw a model of an atom for her project for the science fair. She wants to draw an ato...
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