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zalisa [80]
3 years ago
8

A tuning fork vibrates at 15,660 oscillations every minute. What is the period (in seconds) of one back and forth vibration of t

he tuning fork?
Physics
1 answer:
Ierofanga [76]3 years ago
4 0

<u>We are given:</u>

The tuning fork vibrates at 15660 oscillations per minute

<u>Period of one back-and forth movement:</u>

the given data can be rewritten as:

1 minute / 15660 oscillations

60 seconds / 15660 oscillations          <em>(1 minute  = 60 seconds)</em>

<em>dividing the values</em>

0.0038 seconds / Oscillation

Therefore, one back and forth vibration takes 0.0038 seconds

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Two golf balls are hit from the same point on a flat field. Both are hit at an angle of 30∘ above the horizontal. Ball 2 has twi
dimaraw [331]
First let's find the time it takes for the first ball to land:
Acceleration is a=-g so vertical velocity is V=-gt + V1sin(30).
Position is thus
S=(-1/2)gt^2 +V1t sin(30).
Solving for t gives
t=2V1sin(30)/g
The second ball has the same position function except for the new velocity, which is given by
V2=2V1. Putting this in and solving for t2 gives
t2=4V1sin(30)/g.
It takes twice as long for the second ball to land on the ground.
The horizontal distance of ball 1 is S1 = V1t cos(30). Again we look at ball 2's distance by substituting V2=2V1 and get
S2 = 2V1t2 cos(30).
Note here I put in t2 since it will fly for that amount of time. But we already saw that
t2 = 2t1
So S2=4V1 cos(30)
That is the second ball goes 4 times further than the first one. This is because it is going twice as fast along both the horizontal and the vertical. It moves horizontally twice as fast for twice as long.
6 0
3 years ago
Read 2 more answers
What is the name of the spacecraft that has travels the farthest away from earth
luda_lava [24]
NASA Voyager 1 space craft
8 0
3 years ago
Read 2 more answers
1. ¿Cuál es el aporte a la electrostática que se le atribuye a Thales de Mileto?
aleksandrvk [35]

Answer: Descubrio una forma de observar la corriente estática, y quizas fue uno de los primeros en observarla y escribir sobre ella.

Explanation:

Alrededor del 600 a.C. Tales se da cuenta de que frotando pieles con otros materiales, lograba que estos atrajeran motas de polvo, y luego escribió sobre esto que hoy en día conocemos como electricidad estática. De hecho los romanos descubrieron que frotando pieles con ámbar podían ver como pequeñas chispas saltando de estos.

Esto sucede por que al frotar los dos materiales, uno de ellos tiene tendencia a perder cargas mientras el otro (usualmente conductor o aislante) tendrá tendencia a absorberlos. Luego esas cargas absorbidas son una corriente estática que queda "almacenada" en uno de los materiales.

Entonces podemos decir que el aporte a la electrostática que se le atribuye a Tales de Mileto es "descubrir" la electricidad estática.

8 0
3 years ago
Please help me. i have 2 hours
mestny [16]

the missing word is clockwise moment. I hope this helps good luck

7 0
3 years ago
An elevator car, with a mass of 450 kg is suspended by a single cable. At time = 0s, the elevator car is raised upward. The tens
Alexeev081 [22]

Answer:

33.33 m/s

Explanation:

m = 450 kg. T = 5000 N, t = 3 seconds,

let the net acceleration is a.

T = m a

a = 5000 / 450 = 11.11 m/s^2

u = 0 , v = ?

Let v be the velocity after 3 seconds.

Use first equation of motion

v = u + a t

v = 0 + 11.11 x 3 = 33.33 m/s

5 0
3 years ago
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