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
tigry1 [53]
3 years ago
9

Which situation has the greatest pressure? A. Atmospheric pressure at sea level, equal to 1.01 X 105 N/m2 B. The pressure that a

person of mass 70 kg exerts on the floor when she balances on the ball of one foot, with an area of contact of 50 cm2 C. The pressure that a physics textbook of mass 2.5 kg exerts on a desk when it is lying flat on the desk, with an area of contact of 22 cm X 28 cm
(a) Identify the empirical formula of this compound.
Chemistry
1 answer:
Deffense [45]3 years ago
8 0

Answer:

B

Explanation:

We are given that

A.Atmospheric pressure=P_0=1.01\times 10^5N/m^2

B.Mass,m=70 kg

Area,A=50 cm^2=50\times 10^{-4} m^2

1 m^2=10^4 cm^2

Force=mg

Where g=9.8 m/s^2

Using the formula

F=70\times 9.8=686 N

P=\frac{F}{A}=\frac{686}{50\times 10^{-4}}=1.37\times 10^5 N/m^2

C.Mass ,m=2.5 kg

Area,A=22\times 28=616 cm^2=616\times 10^{-4} m^2

Pressure=\frac{mg}{A}=\frac{2.5\times 9.8}{616\times 10^{-4}}=397.7 N/m^2

In situation B has greatest pressure.

You might be interested in
Calculate the number of moles in 2.67 g of carbon trihydride
Scorpion4ik [409]

Answer:0.178 moles

Explanation: carbon trihydride seems to be an unusual name for the methyl group CH3–

ionic wt 15

moles = 2.67/15 = 0.178

8 0
3 years ago
What is the best definition of federalism
liberstina [14]
<span>I believe its, the federal principle or system of government. Hope this can help!! >-<</span>
5 0
3 years ago
Rounded to the nearest whole number, how many neutrons, on average, are in an atom of osmium? 76 114 190 266
Sonja [21]
Osmium has 114 neutrons on average
5 0
3 years ago
Read 2 more answers
Write down the compounds that does not have an alpha hydrogen.
Yuliya22 [10]

Answer:

This question appears incomplete

Explanation:

However, an alpha hydrogen is the hydrogen that is found on the alpha, α-carbon in an organic molecule. Alpha carbon is referred to the first carbon that is attached to a functional group. Generally, compounds that do not have alpha carbon do not have alpha hydrogen. For example, first member of all functional groups do not usually have alpha carbon and hence do not have alpha hydrogen.

Also, Alkanes, alkenes and alkynes do not have also

6 0
3 years ago
CAN SOMEONE PLEASE HELP ME ASAP PLEASEE ANYBODY LITERALLY ANYONE OUT THERE PLEASE
IgorC [24]

Answer:

Electrons

Explanation:

Atoms can combine together and share electrons between them. Atoms that share electrons are linked to each other in a form, called a molecule that is in a lower energy state than either of the separate atoms alone.

Pls Brainliest! It would mean a lot! ;)

4 0
3 years ago
Other questions:
  • 5/10
    7·2 answers
  • Provide a structure for the following compound: C9H10O3; IR: 2400–3200, 1700, 1630 cm–1; 1H NMR: δ 1.53 (3H, t, J = 8 Hz); δ 4.3
    8·1 answer
  • How could you demonstrate boiling point?
    9·1 answer
  • What is the unit for mass
    9·2 answers
  • g Imagine that you found a piece of carved wood that has been embedded in glacial ice. The mass of the wood is 50 grams, and 30%
    15·1 answer
  • 1.
    5·1 answer
  • Can someone help with this problem
    13·1 answer
  • What can you infer about the growth of the seed type pictured in the graphs below? ( Note, the vertical axis represents the numb
    5·1 answer
  • Detailed description of how group 1 atoms bond with group 7 atoms​
    5·1 answer
  • a classroom has an aquarium. In the aquarium are a goldfish and a water plant. the teacher explains that both organisms use cell
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!