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telo118 [61]
3 years ago
12

An action potential arriving at the presynaptic terminal causes what to occur?

Physics
1 answer:
Ulleksa [173]3 years ago
5 0

Answer:

Voltage-gated calcium ion channels open, and calcium ions diffuse into the cell

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Is using a heater to keep warm when it is cold conduction convection or radiation
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Answer: convection

Explanation:

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Which best describes internet wikis as a source of scientific information
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They are written or edited by anyone

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Real-world examples of power
Paha777 [63]
By definition, power is the amount of energy consumed (or produced) in a second. (or more precisely, it is the rate of change in energy).
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3 0
3 years ago
A car accelerates from rest to 19 m/s in 6 seconds. What is the acceleration of the car?
choli [55]

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the car is moving so that how it gos so fast

Explanation:

7 0
3 years ago
A 45 kg bear slides, from rest, 11 m down a lodgepole pine tree, moving with a speed of 5.8 m/s just before hitting the ground.
Viefleur [7K]

Answer:

Explanation:

a )

change  in the gravitational potential energy of the bear-Earth system during the slide  = mgh

= 45 x 9.8 x 11

= 4851 J

b )

kinetic energy of bear just before hitting the ground

= 1/2 m v²

= .5 x 45 x 5.8²

= 756.9 J

c ) If  the average frictional force that acts on the sliding bear be F

negative work done by friction

= F x 11 J

then ,

4851 J -  F x 11 =  756.9 J

F x 11 = 4851 J -   756.9 J

= 4094.1 J

F = 4094.1 / 11

= 372.2 N  

4 0
3 years ago
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