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yanalaym [24]
3 years ago
9

Can some help me pliz ​

Physics
1 answer:
muminat3 years ago
3 0

1).  a

2).  g

3).  b

4).  h

5).  e

6).  c

7).  d

8).  f

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Hummingbirds may seem fragile, but their wings are capable of sustaining very large forces and accelerations. (Figure 1) shows d
gulaghasi [49]

Acceleration is mathematically defined as; ΔV/t.

<h3>What is acceleration?</h3>

Acceleration is defined as the ratio of the change in velocity to time. It is defined as the extent to which the velocity changes within a given time interval.

The question is incomplete so we can not arrive at the final answer. However, acceleration is mathematically defined as; ΔV/t.

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5 0
2 years ago
An object traveling at a constant
mel-nik [20]

Answer:

pi / 2  radians / s

Explanation:

One revolution = 2 pi Radians    in 4 seconds

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4 0
2 years ago
Which of the following describes a role of gravity in the formation of our solar system?
Black_prince [1.1K]
I think the answer is A because it is gravity that caused the planets to form and start orbiting around the nearest star which is the sun
5 0
3 years ago
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For a photoelectric tube, calculate the voltage which will be just sufficient to stop electrons emitted by the sodium photo-plat
Talja [164]

Answer:

1.11 V

Explanation:

Given that the Einstein photoelectric equation states that;

KE = E - Wo

E = energy of incident photon

Wo= work function of the metal

E = hf = 6.64 x 10-34 * 6 x 1014

E = 39.84 * 10^-20 J or 3.98  * 10^-19 J

KE = 3.98  * 10^-19 J - 2.2 x 10-19J

KE = 1.78 *  10^-19J

We convert this value of KE to electron volts

KE = 1.78 *  10^-19J/1.6 x 10-19C

KE = 1.11 eV

Hence; 1.11 V will be just sufficient to stop electrons emitted by the sodium photo-plate reaching the collector plate.

8 0
3 years ago
Which statement describes why ocean currents are considered convection currents?
Nataly_w [17]

I think its B B)Warm water rises and cold water moves in to replace it.

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3 years ago
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