When two horizontal forces are exerted on a cart, f1 = 650 n forward and f2 = 400 n backward, the cart undergoes acceleration. what additional force is needed to produce non-accelerated motion? in other words, what force f3 is necessary to have the net force on the cart be zero?
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Which accounts for an increase in the temperature of a gas that is kept a constant volume
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Rank the six combinations of electric charges on the basis of the electric force acting on q1. define forces pointing to the right as positive and forces pointing to the left as negative. rank positive forces as larger than negative forces. q1,q2,q3 = positive(+) q1 = + q2 = + q3 = - q1 = + q2= - q3= + q1= - q2= + q3= + q1= + q2= - q3= - q1,q2,q3 = negative
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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.
Answers: 1
Physics, 22.06.2019 19:30
Which describes increasing the efficiency of energy resource
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When two horizontal forces are exerted on a cart, f1 = 650 n forward and f2 = 400 n backward, the ca...
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