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
SpyIntel [72]
3 years ago
13

A book is sitting on a desk. The area of contact between the book and the desk is 0.06 m2 of the body's weight is 30 N what is t

he pressure the book exerts on the desk
Chemistry
1 answer:
tekilochka [14]3 years ago
7 0

Answer:

500N/m²

Explanation:

The Pressure can be calculated using the formula:

P = F/A

Where;

F = force (N)

A = Area (m²)

Based on the information provided in the question, F = 30N, A = 0.06m²

P = F/A

P = 30/0.06

P = 500N/m²

You might be interested in
In a heat engine, 700 J of heat enters the system, and the piston does 400 J of work. What is the final internal (thermal) energ
Vitek1552 [10]

The first law of thermodynamics characterises the two types of energy transfer, as heat and as thermodynamic. The final internal (thermal) energy of the system is 1,500 J.

<h3>What is internal energy?</h3>

The energy present in a system itself for conducting reactions is called internal energy.

Given,

  • Heat entering system (Q) = 700 J
  • Work done by the piston (W) = 400
  • Initial energy (\rm U_{1})= 1200 J

According to the <u>first law of thermodynamics</u>:

\rm Q = \Delta U + W

Substituting values in the above equation:

\begin{aligned}\rm Q &= \rm U_{2} - U_{1} + W\\\\\rm U_{2}  &= \rm Q - W + U_{1}\\\\\rm U_{2}  &= 700 - 400 + 1200\\\\&= 1500 \;\rm J\end{aligned}

Therefore, option D. 1500 J is the final energy.

Learn more about internal energy here:

brainly.com/question/2602565

4 0
2 years ago
Read 2 more answers
Which of the following can you determine from mass spectrometry data
bonufazy [111]

Answer:

different isotopes of na element

7 0
3 years ago
What is a chemical off of the periodic table that is sticky
Alex73 [517]
I think it’s the one that has a Br
3 0
3 years ago
Read 2 more answers
What are the coefficients that will balance the skeleton equation below?
Vesna [10]

Answer:

the answer is 1,3,2

Explanation:

Balance equation

5 0
3 years ago
What are some properties of matter that can be identified without testing or measuring
kiruha [24]
Physical change - No change of matter in this phase
chemical change - All types of phase change occur here
8 0
3 years ago
Other questions:
  • Water vapor particles are most likely to phase change into liquid particles if the vapor particles come into contact with
    7·1 answer
  • How many neutrons in beryllium
    12·2 answers
  • Complete the sentence using the correct term.
    6·2 answers
  • Is it general principal that more abundant isotopes exist in
    14·1 answer
  • PLEASE HELP FAST!!! Which is a characteristic of colloids?
    8·2 answers
  • The difference between asexual and sexual reproduction is _______. Please help me with this, thank you.
    7·1 answer
  • What is the chemical formula for Fluorine trisulfide ?
    13·1 answer
  • What could have caused the mass to be higher than the initial mass​
    12·2 answers
  • Brainiest and 10 Points
    7·2 answers
  • Nuclear forces exists because the particles in the nucleus are ?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!