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
Elina [12.6K]
3 years ago
5

During a test, a solution placed on a sheet

Physics
1 answer:
suter [353]3 years ago
3 0

Answer:

B. Acidic

Explanation:

Neutral an Basic solutions wouldn't create any reaction

You might be interested in
One’s behavior cannot be affected by one’s subconscious
igomit [66]

That statement is false

Our subconscious tend to give a strong influence to our behaviours even if we are not feeling it directly.

For example, let's say that there is a boy that hurt by cats and it's ingrained in his head that cats possess high level of danger to him. Even after that boy grow up, his subsconcious would most likely cause a certain level of paranoia that make him either scared of cats or simply annoyed by seeing them.

3 0
3 years ago
Read 2 more answers
The collision between a hammer and a nail can be considered to be approximately elastic. estimate the kinetic energy acquired by
Setler [38]

Here we can use momentum conservation as in this type of collision there is no external force on it

m_1v_{1i} + m_2v_{2i} = m_1 v_{1f} + m_2v_{2f}

now here we can say

m_1 = 10 g

v_{1i} = 0

m_2 = 550 g

v_{2i} = 3.5 m/s

now here we can say

10*0 + 550 * 3.5 = 10 v_{1f} + 550 v_{2f}

192.5 = v_{1f} + 55 v_{2f}

now by coefficient of restitution

for elastic collision we know that e = 1

v_{2f} - v_{1f} = e(v_{1i} - v_{2i})

v_{2f} - v_{1f} = 0 - 3.5

now by solving the two equation

56v_{2f} = 189

v_{2f} = 3.375 m/s

also we know that

v_{1f} = v_{2f} + 3.5 = 3.375 + 3.5 = 6.875 m/s

so final speed of the nail is 6.875 m/s


6 0
3 years ago
Read 2 more answers
30 points plz help ill do anything... literally anything.
ruslelena [56]

Answer:

1. 2.5s

Explanation:

1. For time, divide Distance / speed

25m / 10

=2.5s

3 0
3 years ago
An electron is a negatively charged particle that has a charge of magnitude, e - 1.60 x 10-19 C. Which one of the following stat
Ivahew [28]

Answer:

The electric field is directed toward the electron and has a magnitude of E=\frac{ke}{r^{2} }.

Explanation:

An electric field is define as the surrounding of charges which exert a force on each other and this force can be attractive or repulsive depends on the charge.

In the given case electron is given and the magnitude of charge on electron is e=1.6\times 10^{-19}C

Electric field can be represented as,

E=\frac{kQ}{r^{2} }

Here, r is the distance between the point ande charge, k is the electric field constant and Q is the charge.

In the given question an electron is given so electric field will be,

E=\frac{ke}{r^{2} }

As we know that electric field start from the positive charge and vanish in the negative charge.

So, here the electric field will be E=\frac{ke}{r^{2} } and it is directed toward the electron because of negative charge on the electron.

6 0
3 years ago
Match the layers of the atmosphere with the description that best matches it according to the graph titled Temperature Profile.
Finger [1]
The correct matches are as follows:

<span>Troposphere
A) Layer closest to the Earth where all weather occurs

Mesosphere
</span>C) temperature remains constant as elevation increases<span>

Mesopause
</span>D) temperature remains at a constant zero degrees Celsius as elevation increases<span>


Stratosphere
</span>E) begins between 50-60km and decreases in temperature as elevation increases <span>


Stratopause
</span> B) temperature increases as elevation increases


Hope this answers the question. Have a nice day.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Speed training increases one's maximum velocity.<br> a. True<br> b. False
    10·2 answers
  • Ma puteti ajuta sa rezolv la fizica o problema ?
    15·1 answer
  • (a) In the deep space between galaxies, the density of atoms is as low as 106 atoms/m^3 , and the temperature is a frigid 2.7 K.
    13·1 answer
  • The Balmer series is formed by electron transitions in hydrogen that
    13·1 answer
  • Your mom is making lunch which forces are acting on your mom
    6·2 answers
  • The equation for the chemical reaction shown is not balanced. What number should replace the question mark to balance this equat
    9·1 answer
  • Derivation of Eq. (3): o Basic physics principles: Justify equations (1) and (2) in your own words. . Doing the algebra: From eq
    10·1 answer
  • Definition determining volume
    6·1 answer
  • These three bulbs are powered by the battery. What will happen if the middle light burns out? A. The two other bulbs will go out
    14·1 answer
  • See attachment for the question
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!