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4 years ago

Pressure of gas is 13.6 cm of hg what does it means

Physics

1 answer:

vlada-n [284]4 years ago

5 0

Explanation:

13 cmHg (centimeters of mercury) is the pressure at the bottom of a column of mercury 13 cm deep. It is the equivalent of about 17.3 kPa or 2.5 psi.

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Which of the following has a mass of approximately one gram?

Vilka [71]

A paper clip is a example of a thing that has a mass of one gram.

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3 years ago

A spring has K=24 N/m, we put in its end an object with 4 kg, if we pull the object 0.5 m then leave it, what would be the speed

adoni [48]

Answer:

Velocity- v=10m/s south Speed- v=10m/s

Explanation:

the salar measurement of how fast an object is moving.

Velocity- v=10m/s south :

The vector rate of change of position.

Speed- v=10 m/s : the salar measurement of how fast an object is moving.

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2 years ago

A dumbbell-shaped object is composed by two equal masses, m, connected by a rod of negligible mass and length r. If I1 is the mo

Sati [7]

Answer:

The correct answer to the following question will be Option A (I1 > I2).

Explanation:

Method for moment of inertia because of it's viewpoint including object at a mean distance "r" from the axis is,

⇒ mr²

For Case 1:

Let the length of a rod be "r".

The axis passes via the middle of that same rod so that the range from either the axis within each dumbbell becomes " $\frac{r}{2}$ ".

Now,

Now total moment of inertia = sum of inertial moment due to all of the dumbbell

⇒ $l1=m(\frac{r}{2})^2+m(\frac{r}{2})^2$

⇒ $\frac{mr^2}{2}$

For Case 2:

Axis moves via one dumbbell because its range from either the axis becomes zero (0) and its impact is zero only at inertia as well as other dumbbell seems to be at a range "r" from either the axis

Now,

Total moment of inertia = moment of inertia of dumbbell at distance "r".

$l2=mr^2$

And now we can infer from this one,

⇒ $mr^2>\frac{mr^2}{2}$

So that "I1 > I2" is the right answer.

5 0

4 years ago

Two concurrent forces of 6 newtons and 12 newtons could produce the same effect as a single force of?

snow_tiger [21]

If the forces are acting in exactly opposite directions, they will subtract, and the magnitude of the resultant force is 6 N. This is the minimum resultant force, so that rules out (1). Similarly, if they act in exactly the same direction, they will add, and the resultant force is 18 N. This will be the maximum resultant force. That rules out (3) and (4). Thus, at some angle (between 0 and 180 degrees), you COULD find a resultant force of 15 N.

3 0

3 years ago

Read 2 more answers

What is the magnitude of the final velocity of the combined cars?

Alinara [238K]

It is the same if no external forces are added , that’s your answer.

7 0

3 years ago

Pressure of gas is 13.6 cm of hg what does it means​

Pressure of gas is 13.6 cm of hg what does it means