In projectile motion the horizontal component is not affected by gravity. You split the motion in horizontal and vertical motion. The horizontal will be an uniform motion, with v being constant. While the vertical will be an uniform accelerated motion, with the acceleration being the gravity.
Yes because we have day and night and seasons
Answer:
Buoyancy force and surface tension are the reactions that take places between soap and pepper experiment.
Explanation:
Surface tension:
The surface tension of a liquid is the tendency of liquid surfaces to resist an external force due to the cohesive nature of its molecules.
The pepper and soap experiment helps you to understand buoyancy force and surface tension.
Reaction between the pepper and soap is as following.
- The pepper flakes float because of buoyancy force. It makes the pepper flakes to move away to the edge of the plate.
- This happens because the liquid dish soap changes the surface tension of water.
- And The pepper flakes are so light, it floats on the water surface due to surface tension.
- when we add soap, it breaks the surface tension of water, but the water resists it. So they pull away from the soap along with the pepper flakes.
- This pushes the pepper away from your soap covered finger.
This is the reaction that take places between soap and pepper experiment.
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Answer: D) none of the above
Explanation: This is a classic problem of thermodynamics, and refers to the principle of conservation of energy to give a correct answer
Option A) can be ruled out since no matter how much friction is reduced, it will always exist and therefore some energy will be lost
option B) and C) are out of context since the loss of work or energy will continue to exist even if those values are modified, so they do not answer the question
D) is the correct one since it should be said that this is not possible (so far...) as it goes against the conservation of energy and this option is none of the above
