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AlexFokin [52]
2 years ago
12

1 A boy kicks a ball with 40m/s at an angle of 30° with the ground. find the range the ball travels after 6 s.

Physics
1 answer:
Nat2105 [25]2 years ago
5 0

Answer:

208m

Explanation:

since the angle is with the ground which gives a horizontal component to the velocity = v(cos)30°

so the velocity equals 40(cos)30°= 34.64m/s

range(distance) = speed × time

34.64m/s × 6s = 207.8m = 208m

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Answer:

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A 100-g toy car is propelled by a compressed spring that starts it moving. the car follows a curved track. what is the final spe
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0.687 m/s

Explanation:

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What is the kinetic theory of matter? How does it relate to the motion of molecules?
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3 years ago
An experimental tungsten light bulb filament has a length of 5 cm and a diameter of 0.074 cm. The filament is basically just a w
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Answer:

power emitted is 1.75 W

Explanation:

given data

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total filament emissivity = 0.300

temperature = 3068 K

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solution

we find first area that is π×d×L

area = π×d×L

area = π×74 ×10^{-5}×5 ×10^{-2}

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power emitted  = 0.300× 5.67 × 1162.3892  ×10^{-5}  × (3068)^4

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5 0
3 years ago
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A = 60m*240m = 14,400 m^2

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