<span>The summated activity of nerve cell action potentials and postsynaptic potentials</span>
Answer: option A. r = 3x+2y
Explanation:
Vector r is plotted on the graph. On x-axis each small division corresponds to 1 unit. Similarly on y-axis, each small division corresponds to one unit.
The vector is the resultant of addition of its x and y components. we would draw perpendicular to the x-axis and y-axis from the head of vector r.
On x-axis,
= +3 units
on y-axis,
= +2 units

Hence, vector r can be written as: r = 3x + 2y . Correct option is A.
Use the formula distance = rate * time. substitute in the values you know, which gives you distance = 120mph * 3.5hours. multiply 120 and 3.5 to get distance = 420 miles.
Answer:
5.6 Tesla
Explanation:
L = 52 cm = 0.52 m
V = 2.75 m/s
e = 8 V
Let B be tha magnitude of magnetic field. Use the formula for the motional emf
e = B × V × L
B = e / V L
B = 8 / (2.75 × 0.52)
B = 5.6 Tesla