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
Dennis_Churaev [7]
3 years ago
6

Based on its location on the periodic table, which element is the best

Physics
2 answers:
jeka943 years ago
8 0

Answer:c

Explanation:

tankabanditka [31]3 years ago
5 0
Answer :C. Calcium


C
You might be interested in
What is the logical oreder for these words : verse, interlude,verse,refrain, introduction,refrain,coda,refrain,verse
Nikolay [14]

Sorry to say but I know that t(e introduction is first and the coda is last


3 0
3 years ago
An electromagnetic wave has a frequency of 5.0 x 1014 Hz. What is the
andrezito [222]

Answer:

c

Explanation:

wavelength = speed of light/ frequency

= (3x 10^8 m/s)/(5.0 x 10^14 Hz)

= 6.0 x 10^-7 m

5 0
3 years ago
A geosynchronous Earth satellite is one that has an orbital period of precisely 1 day. Such orbits are useful for communication
koban [17]

Answer:

r = 4.24x10⁴ km.  

     

Explanation:

To find the radius of such an orbit we need to use Kepler's third law:

\frac{T_{1}^{2}}{T_{2}^{2}} = \frac{r_{1}^{3}}{r_{2}^{3}}

<em>where T₁: is the orbital period of the geosynchronous Earth satellite = 1 d, T₂: is the orbital period of the moon = 0.07481 y, r₁: is the radius of such an orbit and r₂: is the orbital radius of the moon = 3.84x10⁵ km.                           </em>                              

From equation (1), r₁ is:

r_{1} = r_{2} \sqrt[3] {(\frac{T_{1}}{T_{2}})^{2}}                            

r_{1} = 3.84\cdot 10^{5} km \sqrt[3] {(\frac{1 d}{0.07481 y \cdot \frac{365 d}{1 y}})^{2}}      

r_{1} = 4.24 \cdot 10^{4} km      

Therefore, the radius of such an orbit is 4.24x10⁴ km.

I hope it helps you!

3 0
3 years ago
What is newtons 3rd law? pls help!
drek231 [11]
For every actions, there is an opposite reaction.

3 0
3 years ago
Read 2 more answers
An object that completes 20 vibrations in 10 seconds has a frequency of
nika2105 [10]

Answer:

<em> The object has frequency of 2 Hz and time period of 0.5 s.</em>

Explanation:

<em>Frequency</em> is defined as number of oscillation per second ie back and forth swings done in single second.

Here it is given that the object oscillates 20 times in 10 seconds.

So f = \frac{20}{10} = 2Hz

The <em>time period</em> is defined as time taken by the object to complete one full oscillation.

T = \frac{1}{f}

T= \frac{1}{2} =0.5 s

<em>Thus the object has frequency of 2 Hz and time period of 0.5 s.</em>

7 0
3 years ago
Other questions:
  • Can sum1 pls give me the answer to number 3
    12·1 answer
  • In a double-slit experiment, if the central diffraction peak contains 13 interference fringes, how many fringes are contained wi
    9·1 answer
  • How does air resistance affect forward motion
    11·2 answers
  • oppositely charged objects attract each other this attraction holds electrons in Adams and hold on to one another in many compou
    12·1 answer
  • Venus has a radius of 6.05 x 106 m,
    5·1 answer
  • If we decrease the amount of force applied to an object, and all other factors remain the same, the amount of work completed wil
    5·2 answers
  • To practice Problem-Solving Strategy 25.1 Resistor Circuits. Find the currents through and the potential difference across each
    11·1 answer
  • Hi so this is 15 points :D
    7·1 answer
  • If you wanna make it easier you can number them going down 1,2,3, or 4 &amp; just tell me the number
    13·1 answer
  • General kinematics problem.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!