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Artyom0805 [142]
2 years ago
12

A boy is running to the east and jumps into a stationary boat in a lake. Once the boy lands in the boat, the boat moves to the e

ast. Which best compares the initial momentum of the boy with the final momentum of the boy/boat system?
Physics
1 answer:
Hunter-Best [27]2 years ago
4 0
<span>The initial momentum of the boy is equal to the boy/boat because the final velocity of the boat is less than the initial velocity of the boy.</span>
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The Olympic record for running the 200m dash is 19.3 seconds. What is the average speed for this record?
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I think it’s c. if not i’m sorry!!
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2 years ago
The National Ignition Facility at Lawrence Livermore National Laboratory initiates nuclear fusion by converging 192 laser beams
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Answer:

9.6x10¹³watt

Explanation:

See attached file

8 0
3 years ago
A horizontal rectangular surface has dimensions 2.80 cm by 3.20 cm and is in a uniform magnetic field that is directed at an ang
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Answer:

magnitude of the magnetic field 0.692 T

Explanation:

given data

rectangular dimensions = 2.80 cm by 3.20 cm

angle of 30.0°

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solution

we take here rectangular side a and b as a = 2.80 cm and b = 3.20 cm

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∅ = 60°

and flux  is express as

flux Ф = \int \vec{B}.d\vec{A}   .................1

and Ф = BA cos∅    ............2

so B = \frac{\phi }{Acos\theta }    

and we know

A = ab

so

B = \frac{\phi }{abcos\theta }    ..............3

put here value

B =  \frac{3.10\times 10^{-4} }{2.80 \times 10^{-2}\times 3.20 \times 10^{-2}\times cos60}  

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B = 0.692 T

8 0
2 years ago
During a family trip to Laura's grandmother's house, the family cast traveled a distance of of 8 miles in 24 minutes. During the
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The correct answer is B

4 0
2 years ago
Anna pushes a box with a force of 8.00 newtons. She generates a power of 3.00 watts. How much time does it take for Anna to move
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t = Fd / P
t = 8 (9.72) / 3.0
t = 25.92 s
8 0
2 years ago
Read 2 more answers
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