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
grin007 [14]
3 years ago
5

What do hydrogen and helium have in common?

Physics
1 answer:
Savatey [412]3 years ago
4 0

Atomic disguise makes helium look like hydrogen. ... A helium atom consists of a nucleus containing two positively charged protons and two neutrons, encircled by two orbiting electrons which carry a negative charge. A hydrogen atom has just one proton and one electron

You might be interested in
n general, which trophic level has the LEAST energy available to it? A) producer B) primary consumer C) secondary consumer D) te
zaharov [31]
D - tertiary consumer

This is because it is the farther up to food chain.  
4 0
2 years ago
What abiotic factor influences the color of the snowshoe rabbits fur?
-BARSIC- [3]
<span>SNOW of course!  5555555555555555555555555555555555555555555555555555555555555555</span>
8 0
3 years ago
Read 2 more answers
15. A car is stationary at the top of a hill with the engine
White raven [17]

Answer:

kinetic energy

Explanation:

hop it is helpful

mark me brainlist

5 0
3 years ago
Is it accurate to say that galaxies take up most of the volume of space? Why or why not?
RUDIKE [14]

Answer:

ntergalactic space takes up most of the volume of the universe, but even galaxies and star systems consist almost entirely of empty space.

Explanation:

so to be exact galixes do make up most of the volume of space because galaxies are what make up space!

4 0
1 year ago
is dimensionally correct relation necessarily to be a correct physical relation? explain with example.​
Andreas93 [3]

Answer: hope it helps you...❤❤❤❤

Explanation: If your values have dimensions like time, length, temperature, etc, then if the dimensions are not the same then the values are not the same. So a “dimensionally wrong equation” is always false and cannot represent a correct physical relation.

No, not necessarily.

For instance, Newton’s 2nd law is  F=p˙ , or the sum of the applied forces on a body is equal to its time rate of change of its momentum. This is dimensionally correct, and a correct physical relation. It’s fine.

But take a look at this (incorrect) equation for the force of gravity:

F=−G(m+M)Mm√|r|3r  

It has all the nice properties you’d expect: It’s dimensionally correct (assuming the standard traditional value for  G ), it’s attractive, it’s symmetric in the masses, it’s inverse-square, etc. But it doesn’t correspond to a real, physical force.

It’s a counter-example to the claim that a dimensionally correct equation is necessarily a correct physical relation.

A simpler counter example is  1=2 . It is stating the equality of two dimensionless numbers. It is trivially dimensionally correct. But it is false.

4 0
3 years ago
Other questions:
  • Suppose the sun were to suddenly disappear. what would happen to the orbital path of earth? it would stay the same, but the eart
    13·2 answers
  • Light rays that enter the hole of a pinhole camera form _____ on the back wall of the camera.
    8·1 answer
  • A surfer is actually traveling on which part of a surface wave
    5·2 answers
  • A probe is launched from earth and lands on mars the gravitational acceleration on mars is 3.7 m/s. Which statement best compare
    12·2 answers
  • The figure shows a velocity-versus-time graph for a particle moving along the x-axis. At t=0s, assume that x=0m. What is the par
    6·1 answer
  • A block of mass m = 4.4 kg slides from left to right across a frictionless surface with a speed 9.2 m/s It collides in a perfect
    13·1 answer
  • What is the female sex cells of a plant called?<br> Please help! Tysm!
    9·1 answer
  • 1000 kg car takes travels on a circular track having radius 100 m with speed 10 m/s. What is the magnitude of the centripetal fo
    13·1 answer
  • Two metal plates 4 cm long are held horizontally 3 cm apart in a vacuum, one being vertically above other. The upper plate is at
    14·1 answer
  • A 4.5-kg object oscillates on a horizontal spring with an amplitude of 3.8 cm. Its maximum acceleration is 26 m/s2 . Find (a) th
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!