Physics, 02.11.2019 00:31 emmanuel180
A. draw the electric field lines around a negative charge.
b. calculate the electric force that exists between two objects that are 0.900 m apart and carry charges of 0.00150 c and 0.00240 c. is this force attractive or repulsive?
c. how does the size of the electric force between two charged objects change if the amount of charge on one of the objects is tripled?
d. how does the size of the electric force between two charged objects change if the charges are moved closer together?
e. the image below (first image) shows a metal sphere on a stand. based on the charges shown, describe the overall charge on the sphere.
f. on the model below (second image) draw how the negative charges in the same sphere are redistributed when a positively charged rod is brought near it as shown.
Answers: 1
Physics, 22.06.2019 10:00, unknown6669
Which type of basaltic lava flow has a fairly smooth
Answers: 2
Physics, 22.06.2019 18:00, maren17
Air enters a gas turbine with two stages of compression and two stages of expansion at 100 kpa and 17°c. this system uses a regenerator as well as reheating and intercooling – the intercooler returns the air to the inlet temperature. the pressure ratio across each compressor is 4 ; 300 kj/kg of heat are added to the air in each combustion chamber; and the regenerator operates perfectly while increasing the temperature of the cold air by 20°c. determine the system’s thermal efficiency. assume isentropic operations for all compressor and the turbine stages and use constant specific heats at room temperature. (0.378)
Answers: 3
Physics, 22.06.2019 19:10, summer132
Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to
Answers: 3
A. draw the electric field lines around a negative charge.
b. calculate the electric for...
b. calculate the electric for...
Mathematics, 19.03.2021 19:00
Mathematics, 19.03.2021 19:00
Mathematics, 19.03.2021 19:00
Mathematics, 19.03.2021 19:00
Mathematics, 19.03.2021 19:00
Mathematics, 19.03.2021 19:00