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
fenix001 [56]
2 years ago
13

Which use of iron is due to its chemical properties?

Physics
1 answer:
AfilCa [17]2 years ago
3 0
Colored sparks and rusting.
You might be interested in
Discuss why Wolpert says we have a brain.
ycow [4]

Answer:

“We have a brain for one reason and one reason only, and that's to produce adaptable and complex movements,” stated Wolpert, Director of the Computational and Biological Learning Lab at the University of Cambridge. ... The evidence for this is in how well we've learned to mimic our movements using computers and robots.

8 0
2 years ago
Read 2 more answers
5. A man has a weight of 100 Newtons. How much work is done if he climbs 4 meters up a ladder? Plug numbers under the equation.
Virty [35]

Answer:

<h2>400 J</h2>

Explanation:

The work done by an object can be found by using the formula

workdone = force × distance

From the question we have

workdone = 100 × 4

We have the final answer as

<h3>400 J</h3>

Hope this helps you

5 0
2 years ago
StarsA. begin as protostars, which fire up when they collapse and become denser and hotter.B. create elements by splitting the n
Colt1911 [192]

Answer:

A

Explanation:

Begin as protostars, which fire up when they collapse and become denser and hotter.

4 0
3 years ago
During a compression at a constant pressure of 290 Pa, the volume of an ideal gas decreases from 0.62 m3 to 0.21 m3. The initial
Aloiza [94]

Answer:

a) -41.1 Joule

b) 108.38 Kelvin

Explanation:

Pressure = P = 290 Pa

Initial volume of gas = V₁ = 0.62 m³

Final volume of gas = V₂ = 0.21 m³

Initial temperature of gas = T₁ = 320 K

Heat loss = Q = -160 J

Work done = PΔV

⇒Work done = 290×(0.21-0.62)

⇒Work done = -118.9 J

a) Change in internal energy = Heat - Work

ΔU = -160 -(-118.9)

⇒ΔU = -41.1 J

∴ Change in internal energy is -41.1 J

b) V₁/V₂ = T₁/T₂

⇒T₂ = T₁V₂/V₁

⇒T₂ = 320×0.21/0.62

⇒T₂ = 108.38 K

∴ Final temperature of the gas is 108.38 Kelvin

5 0
3 years ago
Write the nuclear equation for the release of the beta particles by Pb-210.
Liula [17]
210 Pb ---> -ie + 210 B:
84                       8.3
3 0
3 years ago
Other questions:
  • What is the purpose of the ism/wlan indicator light on the backplane of the router? what does it refer to?
    6·2 answers
  • What is the biggest barrier to the use of renewable energy in the United States?
    5·2 answers
  • (01.02 MC) Nicole pushes her bike up a hill. Overhead, the sun exerts a gravitational force on Earth. Which statement is true ab
    9·2 answers
  • What is the meaning of viscosity?
    6·1 answer
  • Need help in Psychology. Please help! Which of the following statements best describes abductive reasoning? A.I think,therefore
    11·1 answer
  • What are action-reaction force pairs?
    6·2 answers
  • Elizabeth has two different electromagnets. Both electromagnets are connected to the same power source and are made of the same
    13·1 answer
  • What is 2f In concave mirrors?
    15·1 answer
  • the asthenosphere is an important layer because it . 5) a) responds to forces by flowing as it is relatively strong b) responds
    12·1 answer
  • The pressure at the bottom of a jug filled with water does NOT depend on the
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!