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3 years ago

Name and describe the three types of binary systems.

Physics

1 answer:

Pachacha [2.7K]3 years ago

5 0

Answer and Explanation:

The binary system is a star system about half of the star are the part of the binary system

The important binary systems are

Visual binary : in visual binary system the two stars resolved visually with nay sort of optical device the orbit of binary orbit is very large about center of mass.
Spectroscopic binary : in this binary system the stars are detected by close analysis of light and after detection it is found that there are two seller spectrum present instead of one.
Eclipsing binary : eclipsing binary system is a several types of variable stars this binary system is very important in astrophysics

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A closed system contains 30g of gas. How much heat(in joules) is added to or rejected by the system to produce 5000 N-m of work

finlep [7]

Answer : The heat rejected by the system is 1000 J

Explanation :

As per first law of thermodynamic,

$q=\Delta U+w$

where,

$\Delta U$ = internal energy of the system

q = heat added or rejected by the system

w = work done of the system

First we have to determine the internal energy for 30 grams of gas.

As, 1 gram of gas has internal energy = 200 J

So, 30 grams of gas has internal energy = 200 × 30 = 6000 J

Now we have to determine the heat of the system.

$q=\Delta U+w$

$\Delta$ = -6000 J

w = 5000 N.m = 5000 J

Now put all the given values in the above formula, we get:

$q=-6000J+5000J$

$q=-1000J$

The negative sign indicate that the heat rejected by the system.

Hence, the heat rejected by the system is 1000 J

8 0

3 years ago

After completing the group activity, do you believe that your instructions were written enough for the other team to follow?

Monica [59]

Answer:

yes I do

Explanation:

and is that the answer you were looking for because I am very dumb so I really don't know

4 0

3 years ago

Read 2 more answers

Please help, question is timed...

Katen [24]

Answer:

Explanation:

50+3*5

8 0

3 years ago

a child hits a ball with a force of 350 N. (a) If the ball and bat are in contact for 0.12 is, what impulse does the ball receiv

Lina20 [59]

Explanation:

Given that,

Force with which a child hits a ball is 350 N

Time of contact is 0.12 s

We need to find the impulse received by the ball. The impulse delivered is given by :

$J=F\times t\\\\J=350\times 0.12\\\\J=42\ N-m$

So, the impulse is 42 N-m..

We know that he change in momentum is also equal to the impulse delivered.

So, impulse = 42 N-m and change in momentum =42 N-m.

7 0

4 years ago

The hanging mass is released and allowed to fall. When it has traveled a distance h (that is, the moment just before it hits the

abruzzese [7]

Answer:

Gravitational potential energy to kinetic energy

Explanation:

In this case you have a case about conservation of energy.

When the mass is released and allowed to fall, its energy is completely gravitational potential energy with a value of U = mgh. m is the mass, g is the gravitational constant and h is the height to the floor from the mass.

While the mass is falling down part of its potential energy converts to kinetic energy of value K=1/2mv^2, because the mass has been acquiring more and more velocity.

Thus, the kinetic energy is increasing while the potential energy is decreasing.

When the mass is just above the floor (the moment just before the mass hits the floor) all its potential energy has been converted to kinetic energy.

Then, you have that the kinetic energy of the mass when the mass is just above the floor, is equal to the potential energy when the mass is at height of h. That is:

$mgh=\frac{1}{2}mv^2$

This is how the law of conservation of energy is fulfilled.

5 0

3 years ago