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andrezito [222]
2 years ago
6

Hello I need help with this science problemA= N= ​

Physics
1 answer:
MakcuM [25]2 years ago
8 0

Answer:

charge of the atom =  -1

charge of the nucleus = 4

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Explain Archimedes Principle
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Archimedes' principle states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially, is equal to the weight of the fluid that the body displaces. Archimedes' principle is a law of physics fundamental to fluid mechanics. It was formulated by Archimedes of Syracuse.

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3 years ago
An example of an unbalanced force is what
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Any two forces acting on each other, which are not equal and opposite ( thereby causing motion ) are unbalanced forces.

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3 years ago
How much heat is needed to change 1.25 kg of steak at 100°C to water at 100°C?
cricket20 [7]

The heat required to change 1.25 kg of steak is 2825 kJ /kg.

<u>Explanation</u>:

Given, mass m = 1.25 kg,     Temperature t = 100 degree celsius

To calculate the heat required,

                                 Q = m \times L

where m represents the mass in kg,

          L represents the heat of vaporization.

When a material in the liquid state is given energy, it changes its phase from liquid to vapor and the energy absorbed in this process is called heat of the vaporization. The heat of vaporization of the water is about 2260 kJ/kg.

                                  Q = 1.25 \times 2260

                                  Q = 2825 kJ /kg.

7 0
3 years ago
Why does ice melt faster in water than in oil when both liquids are at the same temperature​
vekshin1
Water has a high specific heat capacity. Oil has a smaller heat capacity.
7 0
3 years ago
Read 2 more answers
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