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
Sphinxa [80]
4 years ago
10

What is one or two letter character used to identify an element

Physics
2 answers:
Greeley [361]4 years ago
4 0
A symbol of the element. hope this helps!!
Murljashka [212]4 years ago
3 0
Its the symbol it usually has the first letter of the elements name.<span />
You might be interested in
What must be true if a waves wavelength is short ?
dem82 [27]

Answer: So, if the wavelength of a light wave is shorter, that means that the frequency will be higher because one cycle can pass in a shorter amount of time. ... That means that longer wavelengths have a lower frequency. Conclusion: a longer wavelength means a lower frequency, and a shorter wavelength means a higher frequency!

4 0
3 years ago
Describe the energy transformations that occur in a waterfall...
Leno4ka [110]
<span>At the top of the waterfall, the water has potential energy. Once it goes over</span>
5 0
3 years ago
Read 2 more answers
Hazards of earthquakes on land and and underwater! (20 points)
elena-s [515]

If the earthquake is on land it would cause total devastation, building will fall ( depending on hos strong it was), people could die but land earthquake is generally more safer than if there was a earthquake underwater. if that happened there would be tsunamis along the coast and everything in its path would be destroyed and your belongings and stuff like cars could be in another town. hope this helps :)

5 0
3 years ago
Read 2 more answers
A balloon contains 2.3 mol of helium at 1.0 atm , initially at 240 ∘C. What's the initial volume? What's the volume after the ga
pashok25 [27]
A) initial volume
We can calculate the initial volume of the gas by using the ideal gas law:
p_i V_i = nRT_i
where
p_i=1.0 atm=1.01 \cdot 10^5 Pa is the initial pressure of the gas
V_i is the initial volume of the gas
n=2.3 mol is the number of moles
R=8.31 J/K mol is the gas constant
T_i=240^{\circ}C=513 K is the initial temperature of the gas

By re-arranging this equation, we can find V_i:
V_i =  \frac{nRT_i}{p_i} = \frac{(2.3 mol)(8.31 J/mol K)(513 K)}{1.01 \cdot 10^5 Pa}=0.097 m^3

2) Now the gas cools down to a temperature of
T_f = 14^{\circ}C=287 K
while the pressure is kept constant: p_f = p_i = 1.01 \cdot 10^5 Pa, so we can use again the ideal gas law to find the new volume of the gas
V_f =  \frac{nRT_f}{p_f}= \frac{(2.3 mol)(8.31 J/molK)(287 K)}{1.01 \cdot 10^5 Pa} = 0.054 m^3

3) In a process at constant pressure, the work done by the gas is equal to the product between the pressure and the difference of volume:
W=p \Delta V= p(V_f -V_i)
by using the data we found at point 1) and 2), we find
W=p(V_f -V_i)=(1.01 \cdot 10^5 Pa)(0.054 m^3-0.097 m^3)=-4343 J
where the negative sign means the work is done by the surrounding on the gas.
5 0
3 years ago
Which term describes the object that revolves around a central body?
Feliz [49]

Answer:

d satellite i think

Explanation:

i eliminated all the other answers, when i notice that Orbit, Period, and Rotation are not Bodies.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Nuclei of u-238 atoms are
    10·1 answer
  • A motorcycle being driven on a dirt path hits a
    6·1 answer
  • A lever is placed on a fulcrum. A rock is placed on the right end of the lever and a downward (counterclockwise) force is applie
    10·1 answer
  • When does a scientist create the conclusion?
    15·1 answer
  • a 0.0215m diameter coin rolls up a 20 degree inclined plane. the coin starts with an initial angular speed of 55.2rad/s and roll
    8·1 answer
  • Will the velocity of a box change as it moves across the surface with no friction?Explain ​
    8·1 answer
  • Please help<br> Need this for today
    11·1 answer
  • A truck heading east has an initial velocity of 6 m/s. It accelerates at 2 m/s2 for 12 seconds. What distance does the truck tra
    13·2 answers
  • Two parallel rods are each 0.69 m in length. They are attached at their centers to a spring that is initially neither stretched
    15·1 answer
  • What does the vibrating object do to the air particles around it ?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!