1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
34kurt
3 years ago
5

Estimate the volume of a piece of molecular cloud that has the same amount of water as your body.

Physics
1 answer:
noname [10]3 years ago
6 0

Question:

The water molecules now in your body were once part of a molecular cloud. Only about onemillionth of the mass of a molecular cloud is in the form of water molecules, and the mass density of such a cloud is roughly 2.0×10−21 g/cm^3.

Estimate the volume of a piece of molecular cloud that has the same amount of water as your body.

Answer:

The volume of cloud that has the same density as the amount of water in our body is 1.4×10²⁵ cm³

Explanation:

Here, we have mass density of cloud  =  2.0×10⁻²¹ g/cm^3

Density = Mass/Volume

Volume = Mass/Density =   If the mass is 40 kg and the body is made up of 70% by mass of water, we have

28 kg water = 28000 g

Therefore the Volume = 28 kg/ 2.0×10⁻²¹ g/cm^3 = 1.4×10¹⁹ m³ = 1.4×10²⁵ cm³.

Therefore, the volume of cloud that has the same density as the amount of water in our body = 1.4×10²⁵ cm³.

You might be interested in
What will happen when a light bulb is removed from the circuit below, leaving a gap?
Charra [1.4K]

Answer:

The remaining light bulbs will go out.

Explanation:

The light bulb that was taken out routed power to the other light bulbs, there for, not giving power to the next light bulbs will make them turn off or, "go out". This may be incorrect, as you did not provide a picture of the circuit.

7 0
3 years ago
Read 2 more answers
A man walking on a tightrope carries a long a pole which has heavy items attached to the two ends. If he were to walk the tight-
katen-ka-za [31]

Answer:

 I_weight = M L²

this value is much larger and with it it is easier to restore balance.I

Explanation:

When man walks a tightrope, he carries a linear velocity, this velocity is related to the angular velocity by

            v = w r

For man to maintain equilibrium needs the total moment to be zero

             ∑τ = I α

              S  τ = 0

The forces on the home are the weight of the masses, the weight of the man and the support on the rope, the latter two are zero taque the distance to the center of rotation is zero.

Therefore the moment of the masses and the open is the one that must be zero.

If the man carries only the bar, we could approximate it by two open one on each side of the axis of rotation formed by the free of the rope

              I = ⅓ m L² / 4

As the length of half the length of the bar and the mass of the bar is small, this moment is small, therefore at the moment if there is some imbalance it is difficult to recover.

If, in addition to the opening, each of them carries a specific weight, the moment of inertia of this weight is

             I_weight = M L²

this value is much larger and with it it is easier to restore balance.

5 0
3 years ago
What services do plants provide? Select the three that apply.
Irina18 [472]

The answer to this is B, C, and D. hope this helped

6 0
3 years ago
What are the 3 main branches of natural sciences
ICE Princess25 [194]

Answer:

Physical science, Earth science, and life science.

4 0
3 years ago
Read 2 more answers
Plaease help me with thesse four 40 points
Zielflug [23.3K]

Answer:

For the first one c is the answer

For the second one c is also the answer

For the third one is b

Explanation:

I took that

3 0
2 years ago
Other questions:
  • The risk of _______ injury increases with the total amount of physical activity. A. cardiovascular B. musculoskeletal C. cogniti
    9·1 answer
  • Three point charges are on the x axis: −1 µC
    7·1 answer
  • A runner hopes to complete the 10,000m run in less than 30,0min, after running at constant speed for exactly 27.0 min , there ar
    5·1 answer
  • The circumference of a circle is 12π meters. find the​ circle diameter.
    5·1 answer
  • What is a combination of two or more simple machines? a complicated machine, a compound machine ,a compiled machine, a converted
    8·2 answers
  • 1.) When the acceleration is zero, what can you say about the velocity of an object?
    11·1 answer
  • What happens to force when pressure is doubled?
    8·2 answers
  • How many joules of kinetic energy does a pendulum have when it has 100 joules of potential energy
    15·2 answers
  • Lol gn sleep well:))
    8·1 answer
  • (i) A stone is thrown vertically upwards with an initial velocity of 60ms. Find
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!