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Masteriza [31]
3 years ago
6

When using two-wire cable to feed a 240-V appliance that does not require a neutral wire, you should A. mark both ends of the wh

ite wire green. B. use the cable as is. C. use only the black wire. D. mark both ends and any exposed area of the white wire black.
Physics
1 answer:
DENIUS [597]3 years ago
3 0

A, you always want to mark wires with a color that is noticeable

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Answer:sorry but i no understand

Explanation:

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it is possible that the acceleration and velocity are perpendicular to each other? explain with example​
shusha [124]

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Since acceleration = Force / Mass

Here the Force is downward due to the gravitational pull or we can say it is along y-axis.

Since acceleration is directly proportional to force, so acceleration is also along y-axis. This means that velocity & acceleration are perpendicular to each other.

Example:

Let us assume that an aeroplane is flying parallel to the horizontal plane. The aeroplane will experience the acceleration in several directions. One of them here is the gravitational pull which is perpendicular to the the apparent velocity. So the net velocity & its direction will depend upon the vector sum total of all the forces/acceleration acting on it. Also because of this gravitational pull the aeroplane rotates along with the earth, which is a proof that the force/g experienced by it does not go waste.

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Explanation:

5 0
3 years ago
A ball with an initial velocity of zero is dropped from a table onto the ground. After 2 s, the
GenaCL600 [577]
  • Initial velocity=u=0m/s
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Why does a heavier object fall faster
Salsk061 [2.6K]

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To understand why, first look at what factors affect air resistance:

D = ½ρv²CA

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and A is cross sectional area.

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D = W

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An object is placed at a distance of 60 cm from a concave lens of focal length 30cm.find the position and nature of the image?
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Answer:

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