3 years ago

The digital payment system that enables sellers to accept payment at trade

Physics

1 answer:

azamat3 years ago

7 0

$\large \mathfrak{Answer : }$

The Correct option is D. mobile point-of- sale device.

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3 years ago

A piano mover raises a 1000-n piano at a constant speed using a very light rope in a frictionless pulley system, as shown in the

Rina8888 [55]

Here As we can see the figure that the end of the rope is pulled by some force F

Now as we can see that Piano is connected by a pulley which is passing over the pulley so effectively net force on the piano upwards will be 2F as it is connected by 2 ropes by the pulley

Now for constant velocity of the piano we will say

$2F - mg = ma$

since velocity is constant so acceleration must be ZERO

so here we have

$2F - mg = 0$

as we know here that

mg = 1000 N

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$2F - 1000 = 0$

$F = 500 N$

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4 years ago

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What is an earth revolution, what shape is it's path, and how long does it last?

zaharov [31]

An Earth revolution is a trip around the sun in a closed path (relative to the sun).

The path is very nearly an ellipse with the sun at one focus, and a little less nearly a circle with the sun at the center.

One complete revolution takes roughly 365.24 days, and at that point, the Earth immediately begins another one.

We have a special word that we use to refer to that special period of time. In English, it's called a "year".

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3 years ago

Compared to the inertia of a 1-kilogram mass, the inertia of a 4-kilogram mass is

Mumz [18]

Explanation:

The inertia of a 4 kg mass is four times as great as a 1 kg mass.

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3 years ago

The force exerted by the machine is the _____

Neporo4naja [7]

Output Force, hope this helps.

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3 years ago