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JulsSmile [24]
3 years ago
5

What is true about valence electrons?

Physics
2 answers:
luda_lava [24]3 years ago
8 0
The valence electrons are the one furthest from the nucleus
Fiesta28 [93]3 years ago
5 0

Answer:

furthest from the nukelest

Explanation:

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A 3 kg penguin is pushed by his penguin friends who give him an initial speed vo at the top of a 30 m hill. The penguin is hopin
Strike441 [17]

Answer:

This question can be answered by using conversation of energy.

K_1 + U_1 = K_2 + U_2

\frac{1}{2}mv_{0}^2 + mgh_1 = 0 + mgh_2

\frac{1}{2}(3)v_0^2 + (3)(9.8)(30) = (3)(9.8)(45)\\\frac{1}{2}(3)v_0^2 = 441\\v_0^2 = 294\\v_0 = 17.14 m/s

Explanation:

Note that we take K_2 = 0 because we are looking for the minimum initial speed for the penguin to reach the top of the second hill. Any other speed more than this will already be enough for him.

7 0
3 years ago
The elements helium neon and xeon all part of the same row Group or diagonal on the periodic table
Murljashka [212]
Helium, neon and Xeon belong to the same Column( Group) which is Column 18 or you can say Group 8 in roman numbers
don't forget if you say group you should write in roman numbers okay. Best of luck
8 0
3 years ago
Read 2 more answers
Which of the following is a way earth’s water (hydrosphere) is directly affected by pollution?
ASHA 777 [7]

The toxic runoff from the farms will directly enters the water bodies of the earth through the drainage system.

The emissions from the cars will go into atmosphere and will react with water and then it will enter the earth's water. So, it is not directly affecting the earth's water.

The dumping trash on roadsides do not enter the earth's water. It can enter the earth's water through rains.

The production of oxygen by trees is not pollution.

Hence, option (A) is correct.

6 0
3 years ago
Loghan and Kyle want to see if the type of ice cream in the freezer affects how hard or soft it is. Each time they placed a new
poizon [28]
True.....................
7 0
3 years ago
Why do you think the speed of sound is higher<br> in solids, than liquids and gases?
mr Goodwill [35]

Answer:

Explanation:

Particles of a solid are closely packed, and  when a solid is hit to produce a sound the kinetic energy present in the solid will cause the particles to vibrate vigorously in the intermolecular spaces in the solid, whereas the paticles of liquids and gases are rather further apart therefore having large intermolecular spaces between particles.

8 0
3 years ago
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