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
Serhud [2]
3 years ago
7

What two gases probably dominated precambrian earth's atmosphere?

Physics
1 answer:
galben [10]3 years ago
8 0
I think these gases are water vapor and nitrogen. As the temperature rises, these water vapor molecules, would condense and form the oceans we have. Also, it was said that in the early atmosphere, nitrogen is very abundant and even today the composition of air is 79% by volume.
You might be interested in
Henri Becquerel is credited with the discovery of:
Yuri [45]
Radium........ Hope this helps :)
5 0
3 years ago
Read 2 more answers
An electronics technician wishes to construct a parallelplate capacitor using rutile (k=100) as the dielectric. The area of the
My name is Ann [436]

Given k=100, Area if plate A = 1.00 cm2

    = 1 x (10-2)2 m^{2}

Thickness of rutile ds = t = 1.00 mm

      = 1 x 10-3 cm

Without any dielectric medium capacitance of a parallel plate capacitor is c = oAd

When a dielectric is placed between capacitors plates then capacitance c1 = KoAd

Here d = t = 1 x 10-1 cm, o = 8.854 x 10-12 c^{2} m^{-2}  N

Now c1 = 100 X 8.859 X 10^{-12}  X 1 X (10-2)^{21}  X 10^{-2}

= 8.859 X 10-1910-3= 8.85 X 10-11 F= 8.85 X 10-12 F

 C1  = 88.5 X 10-12 F

 C1  = 88.5  PF

Correct Option: A

What purposes serve parallel plate capacitors?

The following are some uses for parallel plate capacitors:

  • This kind of capacitor is utilized in rechargeable energy systems such as batteries.
  • These capacitors are used in systems for dynamic digital memory.
  • Such capacitors are used in pulsed laser and radar circuits.

To learn more about Parallel plate capacitors, visit:

brainly.com/question/12733413

#SPJ4

5 0
2 years ago
A 150 kg mass is on a cliff 50 m high. What is its potential energy? 9 How much work is done moving a 2.5 kg book to a shelf 3.0
Mumz [18]
PE=mgh=150kg*9.8m/c² *50m=73500 J

W=F*d=mgd = 2.5*9.8*3.0 = 73.7J

W=mgh=68.0*7.62*9.8 =50.78 J
150 lb = 68.0 kg
25 ft = 7.62m
4 0
4 years ago
Assuming there are no accidents or delays, the distance that a car travels down the interstate
Ganezh [65]

Explanation:

The distance that a car travels down the interstate  can be calculated with the following formula:

Distance = Speed x Time

(A) Speed of the car, v = 70 miles per hour = 31.29 m/s

Time, d = 6 hours = 21600 s

Distance = Speed x Time

D = 31.29 m/s × 21600 s

D = 675864 meters

or

D=6.75\times 10^5\ m

(b) Time, d = 10 hours = 36000 s

Distance = Speed x Time

D = 31.29 m/s × 36000 s

D = 1126440 meters

or

D=1.12\times 10^6\ m

(c) Time, d = 15 hours = 54000 s

Distance = Speed x Time

D = 31.29 m/s × 54000 s

D = 1689660 meters

or

D=1.68\times 10^6\ m

Hence, this is the required solution.

7 0
3 years ago
A suitcase has mass of 4.1 kg and sits on a counter 1.8 m high in the airport. How much gravitational potential energy does it h
velikii [3]

Answer:

72.324 J

Explanation:

Formula for gravitational potential energy is given by;

GPE = mgh.

Where;

m = mass

g = acceleration due to gravity

h = height

We are given;

m = 4.1 kg

h = 1.8 m

Thus;

GPE = 4.1 × 9.8 × 1.8 = 72.324 J

5 0
3 years ago
Other questions:
  • A very long, straight solenoid with a cross-sectional area of 2.16 cm^2 is wound with 85.7 turns of wire per centimeter. Startin
    14·1 answer
  • The record of an earthquake obtained from a seismic instrument is a(n) ________.
    8·1 answer
  • What Causes A Short Circuit?
    7·1 answer
  • A jet leaves a runway whose bearing is N 3232degrees°E from the control tower. After flying 77 ​miles, the jet turns 90degrees°
    12·1 answer
  • What will Al’s charge be when it comes an ion
    10·1 answer
  • A solid conducting sphere of radius 2.00 cm has a charge of 8.95 µC. A conducting spherical shell of inner radius 4.00 cm and ou
    12·1 answer
  • A student wants to approximate the amount of work that the force due to gravity does on the student as the student walks up a se
    6·1 answer
  • Pls help Asapppppppppp.It is due in a little bit.
    11·2 answers
  • When you lift a box, what is the effort force?
    5·1 answer
  • A motorcycle moves according to the velocity-time graph
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!