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
What radiation lies at frequencies just below the frequencies of visible light?
vlabodo [156]
<span>Infrared radiation also called as infrared light was discovered by Sir William Herschel in 1800.It is an electronic magnetic radiation with longer wavelengths than those of a visible light.It involves waves rather than particles. It lies at frequencies just below the frequencies of visible light.</span>
3 0
3 years ago
If the distance to a distant galaxy is recorded as 10,000 light years, then light must have been traveling for 5000 years to rea
satela [25.4K]
False false false false
5 0
2 years ago
Read 2 more answers
a backpack has a mass of 8 kg. it is lifted and given 54.9 J of gravitational potential energy. how high is is lifted? accelerat
dalvyx [7]
P=mgh
h=P/mg
h=(54.9)/(8*9.8)= 0.7m
8 0
3 years ago
Maya uses a tuning fork of frequency 250 Hz to produce transverese waves on a stretched string. Her friend justin measure the di
Goshia [24]

Answer:

The velocity of the wave is 12.5 m/s

Explanation:

The given parameters are;

he frequency of the tuning fork, f = 250 Hz

The distance between successive crests of the wave formed, λ = 5 cm = 0.05 m

The velocity of a wave, v = f × λ

Where;

f = The frequency of the wave

λ = The wavelength of the wave - The distance between crests =

Substituting the known values gives;

v =  250 Hz × 0.05 m = 12.5 m/s

The velocity of the wave, v = 12.5 m/s.

6 0
2 years ago
What is a rock that is full of tiny connected air spaces
Reptile [31]
The preamble rock is filled with air spaces


7 0
3 years ago
Other questions:
  • Force can be represented by
    7·1 answer
  • What happens to a gas that is enclosed in a rigid container when the temperature of the gas is increased?
    15·1 answer
  • You are asked to explain what happens to individual atoms when a chemical change takes place in lab you are doing in class. What
    10·2 answers
  • A watermelon is blown into three pieces by a large firecracker. Two pieces of equal mass m fly away perpendicular to one another
    14·1 answer
  • If a certain shade of blue has a frequency of 7.33 x 10^14Hz what is the energy of exactly one photon of this light. Is this as
    10·1 answer
  • A balloon filled with helium gas at 20°C occupies 4.91 L at 1.00 atm. The balloon is immersed in liquid nitrogen at -196°C, whil
    5·1 answer
  • Mac and Tosh are arguing in the cafeteria. Mac says that if he flings the Jell-O with a greater speed it will have a greater ine
    13·1 answer
  • A rod (length = 80 cm) with a rectangular cross section (1.5 mm × 2.0 mm) has a resistance of 0.20 Ω. What is the resistivity of
    5·1 answer
  • Write three example for types of energy​
    6·2 answers
  • Why are there two types of core?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!