a is a circuit that is energized but dose not allow useful current to flow on the circuit because of a break in the current path

Answers

Answer 1

Answer: A "open circuit" is one that doesn't permit current to flow because of a break in the path.

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Name the physical quantity measured by the velocity-time graph?
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I need help on (a)
I don't know what equation to use?

Answers

Impulse = (force) x (length of time the force lasts)

I see where you doodled (60)(40) over on the side, and you'll be delighted
to know that you're on the right track !

Here's the mind-blower, which I'll bet you never thought of:
On a force-time graph, impulse (also change in momentum)
is just the area that's added under the graph during some time !

From zero to 60, the impulse is just the area of that right triangle
under the graph. The base of the triangle is 60 seconds. The
height of the triangle is 40N . The area of the triangle is not
the whole (base x height), but only 1/2 (base x height).

1/2 (base x height) = 1/2 (60s x 40N) = 1,200 newton-seconds

That's the impulse during the first 60 seconds. It's also the change in
the car's momentum during the first 60 seconds.

Momentum = (mass) x (speed)

If the car wasn't moving at all when the graph began, then its momentum is 1,200 newton-sec after 60 seconds. Through the convenience of the SI system of units, 1,200 newton-sec is exactly the same thing as 1,200 kg-m/s . The car's mass is 3 kg, so after 60 sec, you can write

Momentum = M x V = (3 kg) x (speed) = 1,200 kg-m/s

and the car's speed falls right out of that.

From 60to 120 sec, the change in momentum is the added area of that
extra right triangle on top ... it's 60sec wide and only 20N high. Calculate
its area, that's the additional impulse in the 2nd minute, which is also the
increase in momentum, and that'll give you the change in speed.

Some organelles are present in both plant and animal cells. Each organelle performs a different function. Which of the functions listed below are performed by organelles found in both plants and animals?

Answers

Organelles that are present in both forms of eukaryotic cells are the following :

Nucleus

Endoplasmic Reticulum

Ribosomal units

Golgi apparatus

Lysosomes

Perixosomes

Mitochondrion

Cytoskeleton/Cytosol

Vacuole

Nucleolus

Plasma membrane

Microtubules/Microfilaments

All celluar functions corresponding to the organelles can be found in both plant and animal cells

The cell is made up of the cell membrane and the cell organelles.

There are two types of cells on the basis of an organism. These are as follows:-

Plant cell
Animal cell

Plants cells are different from animal cells in the following ways:-

Cell wall
Ribosome
Vacolues
Plasmodesmata

These are the organelles that are found in both cells

Nucleus
Endoplasmic Reticulum
Ribosomal units
Golgi apparatus
Lysosomes
Perixosomes
Mitochondrion
Cytoskeleton/Cytosol
Vacuole
Nucleolus
Plasma membrane
Microtubules/Microfilaments

For more information, refer to the link:-

brainly.com/question/5172951

Average velocity is different than average speed because calculating average velocity involves what?

Answers

Two things that aren't involved in speed: -- the straight-line distance between the start- and end- points. -- the direction from start-point to end-point.

The correct answer to the question is: Direction

EXPLANATION:

The average velocity of a body is defined as the rate of change of displacement.

We know that displacement is a vector quantity. Hence, it has magnitude as well as direction for its specification.

On the other hand, the average speed of a body is defined as the rate of change of distance travelled. Hence, the average speed of a body is a scalar quantity. It means that it has only magnitude.

Hence, during the calculation of average velocity,we have to think of its direction.

A 72-tooth gear is connected to a 12-tooth gear. If the large gear makes one complete turn, how many turnsdoes the small gear make?

Answers

You divide 72 by 12 to get 6.

You check the weather and find that the winds are coming are coming from the west at 15 miles per hour. This information describes wind's velocity, direction, acceleration, or speed?

Answers

Velocity
It is not showing acceleration, or changes in speed
It is showing direction, but not only that
It is showing speed, but not only that

It is showing speed and direction, which is Velocity

Answer:

velocity

Explanation:

Which element is most likely to carry electric current easily?

Answers

the most likely element is silver
in second place is copper

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A car travels 15 kilometers west in 10 minutes. After reaching the destination, the car travels back to the starting point, again taking 5 minutes. What is the average velocity of the car?A. 0 meters/secondsB. 1.0 meters/secondsC. 1.5 meters/secondsD. 2.0 meters/seconds

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