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wariber [46]
3 years ago
6

If a string completes 500 vibrations in one second, what is its frequency?

Physics
1 answer:
Softa [21]3 years ago
8 0

Answer:

500 Hz

Explanation:

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How do scientists study pollen grains to help them understand climate change?
tino4ka555 [31]

Answer: A. by analyzing and making inferences about them

Explanation:

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2 years ago
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A clothes dryer in a home draws a current of 10 amps when connected on a special 220-volts household circuit.what is the resista
aliya0001 [1]

Answer:

22Ω

Explanation:

if    V ⇒ voltage

      I ⇒ current

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V = IR

220 = 10 x R

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22 = R

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2 years ago
Explain the difference between evaporation and boiling
azamat
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a man can swim in still water with speed of 2kmhr-1 wants to cross a river 200m wide flowing with 1kmhr-1 . Calculate the time t
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Answer:

d savage

Explanation:

3 0
3 years ago
Merry-go-rounds are a common ride in park playgrounds. The ride is a horizontal disk that rotates about a vertical axis at their
Vera_Pavlovna [14]

Answer:

A = 2.36m/s

B = 3.71m/s²

C = 29.61m/s2

Explanation:

First, we convert the diameter of the ride from ft to m

10ft = 3m

Speed of the rider is the

v = circumference of the circle divided by time of rotation

v = [2π(D/2)]/T

v = [2π(3/2)]/4

v = 3π/4

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Radial acceleration can also be found as a = v²/r

Where v = speed of the rider

r = radius of the ride

a = 2.36²/1.5

a = 3.71m/s²

If the time of revolution is halved, then radial acceleration is

A = 4π²R/T²

A = (4 * π² * 3)/2²

A = 118.44/4

A = 29.61m/s²

7 0
3 years ago
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