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
Rus_ich [418]
3 years ago
13

20 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Chemistry
1 answer:
Amanda [17]3 years ago
4 0
The KE can be solve using the formula:
ke = 0.5 mv^2
where m is the mass of the object
v is the velocity
ke = 0.5 ( 2 kg ) ( 5 m/s)^2
ke = 25 J

the GPE can be solved using the formula:
GPE = mgh
where m is the mass
g is the acceleration due to gravity ( 9.81 m/s^2)
h is the height

GPE = ( 4 kg)(9.81 m/s^2)( 40 m)
GPE = 392.4 J
You might be interested in
Is NaCi a metal or nonmetal
Kruka [31]
Hi , NaCl is basically salt , Na for sodium and Cl for chlorine , these elements make Sodium Chloride .The bond between them is ionic.
5 0
3 years ago
Read 2 more answers
The electron pair geometry of a molecule is tetrahedral. What is its bond angle if it shows one lone pair of electrons and three
den301095 [7]
I think is Gonna be C
3 0
3 years ago
Read 2 more answers
Help me help me please
Vadim26 [7]

Answer:

C. wind

Explanation:

4 0
3 years ago
Read 2 more answers
You observe 2 waves named alpha and beta. The alpha wave has a frequency of 5 Hz and the beta wave has a frequency of 2 Hz. Base
MAVERICK [17]

Answer:

shorter wavelength = alpha wave

Explanation:

Given that,

The alpha wave has a frequency of 5 Hz and the beta wave has a frequency of 2 Hz.

We need to compare the wavelengths of these two waves.

For alpha wave,

\lambda_1=\dfrac{c}{f_1}\\\\\lambda_1=\dfrac{3\times 10^8}{5}\\\\=6\times 10^7\ m

For beta wave,

\lambda_2=\dfrac{c}{f_2}\\\\\lambda_2=\dfrac{3\times 10^8}{2}\\\\=15\times 10^7\ m

From the above calculations, we find that the wavelength of the alpha wave is shorter than the wavelength of the beta wave.

8 0
3 years ago
Steel is an alloy consisting of Fe with a small amount of C. Elemental Cr can be added to steel to make the steel less likely to
Yakvenalex [24]
The statement is true
8 0
3 years ago
Other questions:
  • Which water carries the most oxygen in streams and rivers?
    13·1 answer
  • True or False the molecule CCl4 contains one double bond and three single bonds.
    15·2 answers
  • Oxygen has an atomic mass of 16 and an atomic number of 8. how many neutrons are present
    7·1 answer
  • The electron configurations of two unknown elements X and Y are shown . X: 1s^ 2 2s^ 2 2p^ 6 3s^ 1 Y: 1s^ 2 2s^ 1 Which statemen
    6·2 answers
  • Which inquiry skill is based on identifying common features?
    12·1 answer
  • What kind of energy can be transferred?<br><br> Help quick please.
    11·2 answers
  • What is the resistance of a hairdryer if it is 120 volts with a current of 15 amperes?
    9·2 answers
  • Which organs are part of the respiratory system ​
    13·1 answer
  • What properties of water are related to Oxidation?
    13·1 answer
  • Molecular formula of sulphur trioxide by criss cross method ​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!