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3 years ago

Rutherford hypothesized that, in his experiment,more alpha particles would be deflected if ?

Physics

1 answer:

Alex17521 [72]3 years ago

5 0

This is the CBS's this is a B a bit

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A car going 30 m/s to 70 m/s in 10 seconds calculate the acceleration of the car

Zina [86]

70m/s-30m/s is eqal to 40m/s. Divide 40 by 10 and you get 4. This would be the accleration of the car.

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2 years ago

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Michael is looking for examples of energy at the park. He notices a mother pushing her child on a swing. He graphs the number of

inn [45]

Answer:

Explanation:

As you see, the graph INCREASES, which means it goes up. It is not going down, only rising.

If I'm wrong forgive me ;-;

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2 years ago

The Celsius tempersture scale is based on which of the following? a) vapor b) the human body c) the boiling point of air d) the

Darina [25.2K]

I think d is the correct answer

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3 years ago

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A physics student of mass 51.0 kg is standing at the edge of the flat roof of a building, 12.0 m above the sidewalk. An unfriend

balandron [24]

Answer:

Explanation:

The wheel and falling student will have common acceleration .

For rotational motion of wheel

Tx r = I α , T is tension in the crank , α is angular acceleration of wheel , I is moment of inertia , r is radius of the wheel.

= I a / r

T = I a / r²

For motion of student

Mg - T = Ma , M is mass of the wheel.

Mg - I a / r² = Ma

Mg = Ma +I a / r²

Mg = (M +I / r²)a

a = Mg / (M +I / r²)

= 51 x 9.8 / ( 51 + 9.6 / .3² )

499.8 / (51+ 106.67 )

= 499.8 / 157.67

= 3.17 m / s².

If time t is taken to fall by 12 m

12 = 1/2 a t²

24 / a = t²

24 / 3.17 =t²

t²= 7.57

t = 2.75 s

velocity to reach sidewalk

v = u + at

= 3.17 x 2.75

= 8.72 m / s

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2 years ago

What is the period that corresponds to a frequency of 39.5 Hz? Answer in units of s.

tatiyna

The answer for the following problem is mentioned below.

Therefore the time period is 0.02 seconds.

Explanation:

Frequency:

The number of waves that pass a fixed place in a given amount of time. (or)

The number of waves that pas by per second.

The SI unit of the frequency is Hertz(Hz).

Time period:

The time taken for one complete cycle of vibration to pass a given point.

The SI unit of time period is seconds. (s)

Given:

Frequency (f) = 39.5 Hz

To calculate:

Time period (T)

We know;

According to the problem;

From the problem;

f = $\frac{1}{T}$

Where;

f represents the frequency

T represents the time period

f = $\frac{1}{39.5}$

f = 0.02 seconds

Therefore the time period is 0.02 seconds.

5 0

3 years ago