Validity of an experiment is based upon: a. performing a fair test, in which only the dependent variable affects the independent variable. b. using multiple independent variables. c. using a control group. d. performing a fair test in which only the independent variable affects the dependent variable.
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Physics, 21.06.2019 14:00
Two red blood cells each have a mass of 9.0 multiply.gif 10-14 kg and carry a negative charge spread uniformly over their surfaces. the repulsion arising from the excess charge prevents the cells from clumping together. one cell carries â2.50 pc of charge and the other â3.10 pc, and each cell can be modeled as a sphere 7.5 Îźm in diameter. (a) what speed would they need when very far away from each other to get close enough to just touch? assume that there is no viscous drag from any of the surrounding liquid. answer is: 321 m/s how do i find this (b) what is the maximum acceleration of the cells in part (a)? answer is: 1.38e+10 m/s2 how did they find this answer
Answers: 2
Physics, 22.06.2019 14:00
Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.
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Physics, 22.06.2019 16:00
The amount of potential energy possessed by an elevated object is equal to what?
Answers: 1
Physics, 22.06.2019 16:00
In which of the following is positive work done by a person on a suitcase
Answers: 1
Validity of an experiment is based upon: a. performing a fair test, in which only the dependent var...
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