PHYSICS HIGH SCHOOL

You drop your backpack out of a window from a height of 8.3 m. What is the impact speed of your backpack?A. 163 m/s
B. 1.2 m/s
C. 21.3 m/s
D. 12.8 m/s

Answers

Answer 1
Answer: the answer is 12.8 on apex
Answer 2
Answer:

Final answer:

The impact speed of the backpack is approximately 12.8 m/s.

Explanation:

To calculate the impact speed of the backpack, we can use the principle of conservation of energy. The potential energy of the backpack at the top of the window is converted into kinetic energy at the bottom. Assuming no air resistance, we can equate the potential energy to the kinetic energy:



mgh = 1/2mv^2



Here, m is the mass of the backpack, g is the acceleration due to gravity (9.8 m/s^2), and h is the height of the window (8.3 m). By rearranging the equation and solving for v, we can find the impact speed of the backpack.



Using the given values:



v = sqrt(2gh) = sqrt(2 * 9.8 * 8.3) ≈ 12.8 m/s

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Answers

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Question 17 ListenA blue lab cart is traveling west on a track when it collides with and sticks to a red lab cart traveling east. The magnitude of the momentum of the blue cart before the collision is 2.0 kilogram • meters per second, and the magnitude of the momentum of the red cart before the collision is 3.0 kilogram • meters per second. The magnitude of the total momentum of the two carts after the collision is1.0 kg • m/s2.0 kg • m/s3.0 kg • m/s5.0 kg • m/s

Answers

Answer:

option A

Explanation:

given,

momentum of blue car in west direction = Pa = 2 kg.m/s

momentum of red cart in east direction = Pb = 3 kg.m/s

total momentum of the two cart = ?

Pa = 2 Kg.m/s

Pb = -3 kg.m/s

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Answers

Answer:

C.) Calculate the average amount of salt that dissolves to summarize findings

Explanation:

Just telling you, nobody reads these things. They just look at the answer and say oh i got it right now but you should bc i got a 50 on this quiz and this was one of them that was right so believe me when i say, i got this question right. UwU <333333333

Answer:

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Have a good day :)

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Answers

Answer:

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Explanation:

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