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viktelen [127]
3 years ago
15

You plan to take your hair blower to europe, where the electrical outlets put out 240 v instead of the 120 v seen in the united

states. the blower puts out 1600 w at 120 v .
Physics
1 answer:
Dmitrij [34]3 years ago
8 0
P = U × I
I = P / U = 1600W / 120V = 13.4A
P = 240V × 13.4A = 3216W

If your hair blower isnt rated for 220- 230V(this is the voltage in EU) you are most likely going to burn it.
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Answer:

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Explanation:

(a) v = ωR

when R = 0.60, ω = 8.05×2π

v = 0.60×8.05×2π = 30.34 m/s

Now in 2nd case

when R = 0.90, ω = 6.53×2π

v = 0.90×6.53×2π = 36.92 m/s

6.35 rev/s gives greater speed for the ball.

(b) a = ω^2 R = (8.05×2π)^2 )(0.60) = 1534.98 m/s^2

(c) a = ω^2 R = (6.53×2π)^2 )(0.90) = 1515.05 m/s^2

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3 years ago
(c) If η = 60% and TC = 40°F, what is TH, in °F?
arlik [135]
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2 years ago
What is the force applied to a baseball that has a mass of 142kg and has a acceleration of 30m/s to the power of 2
aev [14]
  • Mass=m=142kg
  • Acceleration=a=30m/s
  • Force=F

Using Newton's second law

\\ \sf\Rrightarrow F=ma

\\ \sf\Rrightarrow F=142(30)

\\ \sf\Rrightarrow F=4260N

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We know velocity of sound v=a₩(omega), but speed does not depend on amplitude, why?
MrRissso [65]
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3 years ago
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