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love history [14]
3 years ago
13

Does a falling rock have potential or kinetic energy

Physics
2 answers:
galben [10]3 years ago
5 0

A falling rock has both potential and kinetic energy. But since the rock is losing height and potential energy is proportional to height, the rock is losing potential energy and gaining kinetic energy due to the increasing speed downwards.

Neko [114]3 years ago
3 0

depends t what stage in the fall it is. If it is at the peak, it is fully potential. If it is in the middle, it has both. If it is at the bottom of the fall, it is completely kinetic

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Lena is studying the properties of light in a laboratory. If she increases the amplitude of the light waves she is studying, wha
zaharov [31]

Answer:

A brighter light

Explanation:

Light waves travel through space via light particles called photons. This particles have in essence 2 properties: 1. Amplitude and 2.Frequency. The first one has to do with the intensity of light we see and the second one has to do with the energy (color). If we change only the amplitude, we will see a lighter or darker light and will keep the same color in all amplitude changes. But if we modify the frequency, the intensity will keep the same and the color changes as we move into the light spectrum.

Thus, increasing the amplitude, we will perceive a brigher light.

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In what sense did the flappers dressand dance represent a display of freedom​
pishuonlain [190]

Answer:

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6 0
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Could an average star, such as our sun, become a neutron star?
algol [13]
No but the sun could be a white dwarf stellar remnant.
3 0
3 years ago
Does the number of particles change as the substance changes its state?​
Leviafan [203]

Particles stay the same unless there is a chemical change whether the matter is solid, liquid or gas. ... When substances change state there is no change in mass so if 100 g of ice is melted 100g of water are formed this will boil to form 100g of steam (this is called "conservation of mass").

4 0
3 years ago
The amount of work done by a heat engine equals the amount of thermal energy _____. added to the engine plus the waste heat adde
RideAnS [48]

added to the engine minus the waste heat

Explanation:

The amount of work done by a heat engine equals the amount of thermal energy added to the engine minus the waste heat.

Thermodynamics is used to measure the energy changes that accompanies physical and chemical process.

 In a system;

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  so       W = Q  -   ΔU

some of the heat added added to the system goes as waste heat as no system is 100% efficient.

   the work done on a system goes in as thermal energy, internal energy and waste heat

learn more:

Thermodynamics brainly.com/question/3564634

#learnwithBrainly

3 0
3 years ago
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