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Bezzdna [24]
3 years ago
7

Four students are carrying out different laboratory procedures.

Physics
2 answers:
OlgaM077 [116]3 years ago
7 0
B. Jason’s experiment
hram777 [196]3 years ago
3 0
Jason experiment not pirojas oe kali’s
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An atom an atomic number of 12 and a mass number of 25 can be best described as
katen-ka-za [31]

Neutral Magnesium atom

Explanation:

From the given description of the atom, one can infer that this atom is a neutral atom.

In a neutral atom, the number of protons and neutrons are the same.

 Atomic number = 12

  Mass number = 25

This atom is Magnesium.

   Magnesium has an atomic number of 12 from the periodic table.

Number of protons = 12 = atomic number

 Number of electrons = 12(for neutral atoms, atomic number is same as number of electrons).

  Number of neutrons = mass number - atomic number = 25-12 = 13.

Learn more:

Atomic number brainly.com/question/5425825

#learnwithBrainly

4 0
3 years ago
A stationary, 1000 kg car starts at the top of a 10 meter hill. What is the total energy of the car
Umnica [9.8K]

Answer: 98,000 J

Explanation: The total energy or mechanical energy is expressed in the following equation:

ME= PE + KE

PE = mgh

= 1000 kg x 9.8 m/s² x 10m

= 98000 J

ME = PE - KE

= 98000 J - 0 J

= 98000 J

7 0
4 years ago
Read 2 more answers
When an electron absorbs energy it jumps to what state?
VMariaS [17]
Then, it jumps to HIGHER ORBITALS
4 0
4 years ago
During a visit to the beach, you get in a small rubber raft and paddle out beyond the surf zone. Tiring, you stop and take a res
Monica [59]

Answer:

The main difference in these two movements is that the first is a pure swing movement and the followed form a wave travels from the beach

Explanation:

The movement in the two parts is very different, when the surf zone has passed it is in a deeper part of the water where the seabed does not rise much, therefore due to the movement of the waves there is an upward oscillatory movement and descending, in this movement there is no horizontal displacement.

When it is within the southern zone, there is a rapid rise of the sea floor, which generates a horizontal movement, having a traveling wave, therefore your movement is more complicated, you can have some oscillating movement on the axis and, but in addition to this you have a horizontal movement that reaches you towards the beach, forming a Traveling wave.

The main difference in these two movements is that the first is a pure swing movement and the followed form a wave travels from the beach

3 0
3 years ago
The electric flux through a square-shaped area of side 5 cm near a very large, thin, uniformly-charged sheet is found to be 3\ti
deff fn [24]

Answer:

Explanation:

Given

side of square shape a=5\ cm

Electric flux \phi =3\times 10^{-5}\ N.m^2/C

Permittivity of free space \epsilon_0=8.85\times 10^{-12} \frac{C^2}{N.m^2}

Flux is given by

\phi =EA\cos \theta

where E=electric field strength

A=area

\theta=Angle between Electric field and area vector

E=\frac{\phi }{A\cos (0)}

E=\frac{3\times 10^{-5}}{25\times 10^{-4}\times \cos(0)}

E=0.012\ N/C

and Electric field  by a uniformly charged sheet is given by

E=\frac{\sigma }{2\epsilon_0}

where \sigma=charge density

=\frac{\sigma }{\epsilon_0}

\sigma =0.012\times 8.85\times 10^{-12}

\sigma =2.12\times 10^{-13}\ C/m^2    

5 0
3 years ago
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