For some applications, it is important that the value of a resistance not change with temperature. for example, suppose you made a 4.30 kω resistor from a carbon resistor and a nichrome wire-wound resistor connected together so the total resistance is the sum of their separate resistances.

a.) what value should the carbon resistor have (at 0 ∘c) so that the combination is temperature independent?

b.) what value should the nichrome wire-wound resistor have (at 0 ∘c) so that the combination is temperature independent?

the arctic is a region of the planet, north of the arctic circle, and includes the arctic ocean, greenland, baffin island, other smaller northern islands, and the far northern parts of europe, russia (siberia), alaska and canada.

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s