Physics, 13.01.2020 21:31 dalilahrodriguez
a man begins pushing a lawn mower across a lawn from a standing start. which of the following is true?
a. you cannot tell whether the kinetic energy of the lawn mower is increasing or decreasing from the information given b. the man is decreasing the kinetic energy of the lawn mower
c. the kinetic energy of the lawn mower is not changing.
d. the man is increasing the kinetic energy of the lawn mower
Answers: 3
Physics, 22.06.2019 18:00
Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.
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Physics, 22.06.2019 18:20
Wavelength of 125 meters is moving at a speed of 10 m/s. what is it's frequency?
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Physics, 22.06.2019 21:30
What describes the formation of horizon b? a. forms at the surface b. features parent material c. undergoes the most change d. forms due to decomposed material i think the answer is c. undergoes the most change
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a man begins pushing a lawn mower across a lawn from a standing start. which of the following is tru...
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