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
n200080 [17]
3 years ago
13

Which of the following does not describe a solid

Chemistry
1 answer:
Liono4ka [1.6K]3 years ago
4 0

Answer:

water is not a solid and a rock is a solid

You might be interested in
Part A
Roman55 [17]

These are two questions and two answers

Question 1.

Answer:

  • <u>7.33 × 10 ⁻³ c</u>

Explanation:

<u>1) Data:</u>

a) m = 9.11 × 10⁻³¹ kg

b) λ =  3.31 × 10⁻¹⁰ m

c) c = 3.00 10⁸ m/s

d) s = ?

<u>2) Formula:</u>

The wavelength (λ), the speed (s), and the mass (m) of the particles are reltated by the Einstein-Planck's equation:

  • λ = h / (m.s)

  • h is Planck's constant: h= 6.626×10⁻³⁴J.s

<u>3) Solution:</u>

Solve for s:

  • s = h / (m.λ)

Substitute:

  • s = 6.626×10⁻³⁴J.s / ( 9.11 × 10⁻³¹ kg ×  3.31 × 10⁻¹⁰ m) = 2.20 × 10 ⁶ m/s

To express the speed relative to the speed of light, divide by c =  3.00 10⁸ m/s

  • s =  2.20 × 10 ⁶ m/s / 3.00 10⁸ m/s = 7.33 × 10 ⁻³

Answer: s = 7.33 × 10 ⁻³ c

Question 2.

Answer:

  • 2.06 × 10 ⁻³⁴ m.

Explanation:

<u>1) Data:</u>

a) m = 45.9 g (0.0459 kg)

b) s = 70.0 m/s

b) λ =  ?

<u>2) Formula:</u>

Macroscopic matter follows the same Einstein-Planck's equation, but the wavelength is so small that cannot be detected:

  • λ = h / (m.s)

  • h is Planck's constant: h= 6.626×10⁻³⁴J.s

<u>3) Solution:</u>

  • λ = h / (m.s)

Substitute:

  • λ =  6.626×10⁻³⁴J.s / ( 0.0459 kg ×  70.0 m/s) = 2.06 × 10 ⁻³⁴ m

As you see, that is tiny number and explains why the wave nature of the golf ball is undetectable.

Answer: 2.06 × 10 ⁻³⁴ m.  

5 0
2 years ago
Which of the following produces a physical change in the shape of an object?
bogdanovich [222]

Answer:Any change that occurs without altering the chemical composition of a substance is a physical change. Physical changes can include changing the color, shape, state of matter, or volume of a substance. It is crucial to remember that physical changes never alter the chemical makeup.

Explanation:

i hope that helps u try to figure it out a little bit sorry i couldn't find your answer i didn't have much to go off of

8 0
3 years ago
30 POINTS!!! Please Help With this!!!!
Goshia [24]
X is dependent Y is independent.... number of students is Y flavor is X
6 0
2 years ago
The radius of a uranium atom is 149 pm. How many uranium atoms would have to be laid side by side to span a distance of 4.96 mm?
nikitadnepr [17]

Answer:

4960000000 pm

Explanation:

4.96*1000000000= 4960000000

4 0
3 years ago
Read 2 more answers
1 km is equal to<br><br> 100 m<br> 10,000 dm<br> 1,000 mm<br> 1,000 cm
vovikov84 [41]
The answer would be B) 10,000 DM is equal to 1 kilometer.
3 0
3 years ago
Other questions:
  • Explain the changes that take place at the molecular level when a substance is superheated or supercooled ?
    13·1 answer
  • Why do minor parties have difficulty succeeding in the United States electoral system? A. tend to focus on only a single issue B
    5·1 answer
  • A sealed 1.0 l flask is charged with 0.500 mol of i2 and 0.500 mol of br2. an equilibrium reaction ensues: i2 (g) br2 (g) 2ibr (
    5·1 answer
  • Which lab equipment tool would you use to measure exactly 4 ml of water​
    15·1 answer
  • A bird has a kinetic energy of 3 J and a potential energy of 25 J. What is the mechanical energy of the bird?
    16·1 answer
  • Which of the following formulas has the smallest percent
    10·1 answer
  • Write a balanced net ionic equation for the following reaction. Explain how you arrived at this answer. What did you cancel out?
    9·1 answer
  • Explain why the catalyst is used as a very fine powder and larger pieces of iron are not used.
    7·1 answer
  • BRAINLIEST IF CORRECT
    9·2 answers
  • In many species, a transition metal has an unusually high or low oxidation state. Write balanced equations for the following and
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!