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Over [174]
3 years ago
8

How much energy is needed to heat up 1kg of water by 15degrees?

Physics
1 answer:
saveliy_v [14]3 years ago
8 0

Answer:

1 hora

Explicación:

por que el punto de ebullición  

del agua es a  100

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Weathering of rocks can occur in many ways. In the western United States, strong winds can erode huge rock formations by blowing
stepan [7]

Answer: physical or mechanical weathering

Explanation:

Mechanical weathering which is also referred to as the physical weathering occurs when a rock is broken down into smaller pieces. In this case, there will be a physical change of the rock but its composition will not change.

Some examples include ice freezing and expansion of the cracks in the rock, Smstrong winds that carrycpieces of sand which then sandblast surfaces, moving water which causes abrasion etc.

3 0
2 years ago
A person will feel weightless whenever?
gavmur [86]
When your'e in space you feel weightless blc there's no grsvity in space.
5 0
3 years ago
Read 2 more answers
Objects can be charged by the transfer of electrons.<br> True<br> False
Sveta_85 [38]

Answer:

True

Explanation:

Whenever electrons are transferred between objects, neutral matter becomes charged. For example, when atoms lose or gain electrons they become charged particles called ions. Three ways electrons can be transferred are conduction, friction, and polarization. In each case, the total charge remains the same.

I tried, hope this helps :)

* I might be wrong though

4 0
3 years ago
You're conducting a physics experiment on another planet. You drop a rock from a height of 2.1 m and it hits the ground 0.6 seco
umka21 [38]

The formula to use is the one that connects the acceleration,
the distance fallen, and the time spent falling:

         Distance = 1/2 a T² .

You said  2.1 meters in 0.6 second .

                                                         2.1 m              = 1/2 a  (0.6 sec)²

Multiply each side by  2 :                  4.2 m              =       a (0.6 sec)²

Divide each side by (0.6 sec)² =     (4.2/0.36) m/s² =        a

                                                         a = (11 and 2/3) m/s²

                                        (about 19% more than Earth's gravity)

3 0
3 years ago
Read 2 more answers
What expression gives the amount of light energy (in J per photon) that is converted to other forms between the fluorescence exc
erastovalidia [21]

Answer:

E = hf or E=\dfrac{hc}{\lambda}

Explanation:

The expression that gives the amount of light energy that is converted to other forms between the fluorescence excitation and emission events is given by :

E = hf

f is the frequency

E=\dfrac{hc}{\lambda}

c is the speed of light

\lambda is the wavelength

Hence, this is the required solution.

8 0
3 years ago
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