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
Rainbow [258]
3 years ago
15

On the pH scale, pure water has a pH of

Physics
2 answers:
abruzzese [7]3 years ago
6 0

Answer:

7

Explanation:

Daniel [21]3 years ago
5 0

Answer:

7

Explanation:

You might be interested in
What type of line connects the north and South Pole?
Aloiza [94]

Answer:

lines of longitude

Explanation:

8 0
2 years ago
Question 11 of 11 | Page 11 of 11
KiRa [710]

Answer:

Decreases the time period of revolution

Explanation:

The time period of Cygnus X-1 orbiting a massive star is 5.6 days.

The orbital velocity of a planet is given by the formula,

                                        v = √[GM/(R + h)]

In the case of rotational motion, v = (R +h)ω

                                         ω = √[GM/(R + h)] /(R +h)

Where 'ω' is the angular velocity of the planet

The time period of rotational motion is,

                                     T = 2π/ω

By substitution,

                                      <em>T = 2π(R +h)√[(R + h)/GM] </em>

Hence, from the above equation, if the mass of the star is greater, the gravitational force between them is greater. This would reduce the time period of revolution of the planet.

3 0
3 years ago
A house is wired so that one electrical source comes to a room but many outlets and lights work from that source . when one ligh
Misha Larkins [42]
The room is wired as a parallel circuit
5 0
3 years ago
What would happened if there is no invented of machine?​
yuradex [85]

if there were no invention of machines then life would have been more difficult and simple works could be hard to do. Even now we are using our phones, sitting in a AC room interacting to eachother from different places. without the invention of machines simple things like transportation would have been difficult. There would be horses and donkey for the transportation. There would be no electricity,no internet, no transportation, not even c computers or mobile etc. The market for business will be smaller, the knowledge and news about world would be less.

so the problem would have been bigger than we can imagine. But one thing is that nature could survive lot more compared to what we have done till now by destroying nature.

4 0
2 years ago
Why does damp soil help excess electrons move
Marina CMI [18]

Explanation:

  • Because where there is water, energy is conducted, and <u>moves </u>the electrons.
  • They also move excess electrons because pure water is a poor conductor

3 0
3 years ago
Other questions:
  • A rocket is launched at the rate of 11 feet per second from a point on the ground 15 feet from an observer. to 2 decimal places
    9·2 answers
  • Two objects attract each other with a gravitational force of magnitude 9.20×10^-9 N when separated by 19.2 cm. If the total mass
    6·1 answer
  • A single-turn circular loop of radius 14 cm is to produce a field at its center that will just cancel the earth's magnetic field
    12·1 answer
  • Is it illegal to have earbuds in your ears while swimming at a swim meet.
    14·2 answers
  • The forces acting on a falling leaf are.
    6·1 answer
  • A roller coaster car with a mass of 17,690 kg is moving at a speed of 5 m/s over a hill that is 87.4 m above the
    13·1 answer
  • 1. A wave with a frequency of 10 Hz has a wavelength of 3 meters. At what
    14·1 answer
  • When you start from your house, your bike’s speedometer dial shows a reading of 842 Km. After you go on a straight road for half
    15·1 answer
  • An artificial sattelite is moving in a circular orbit of radius 42250km calculate its speed if it takes 24 hours to revolve arou
    7·1 answer
  • if 16,700 j of work is done to shoot the human cannonball down a 30.5m barrel,then how much force is applied to the person to fi
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!