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Anna007 [38]
3 years ago
7

Mixing of sand in water is an irreversible change true aur false​

Physics
1 answer:
USPshnik [31]3 years ago
3 0

Answer:

<h3>true</h3>

Explanation:

<h3>hope it helps you ❤️</h3><h3>happy to help</h3>
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20. Which scientist's Gold Foil Experiment led him to discover the nucleus of an atom?
julsineya [31]
Hello,

Here is your answer:

The proper answer to your question is option A "Rutherford". Rutherford discovered the nucleus of a atom!

Your answer is A.

If you need anymore help feel free to ask me!

Hope this helps!


7 0
3 years ago
Read 2 more answers
A football quarterback runs 15.0 m straight down the playing field in 2.30 s. He is then hit and pushed 3.00 m straight backward
Monica [59]

Answer:

6.52 m/s

1.72 m/s

5.38 m/s

Explanation:

this question requires us to find the average velocity.

1. velocity in straight down direction:

velocity = distance/time

= 15.0/2.30

= 6.52 m/s

2. velocity in straight backward direction:

velocity = distance/time

= 3.00 /1.74

= 1.72m/s

3. velocity in straight forward direction

velocity = distance/time

= 28.0/5.20

= 5.38 m/s

these are the his velocities for each if the intervals.

thank you!

7 0
3 years ago
What happens in terms of energy when a moving car hits a parked car, causing the parked car to move?
padilas [110]

Answer:

A)The moving car transfers kinetic energy to the parked car.

Explanation:

In terms of energy when a moving car hits a parked car, causing the parked car to move, the moving car transfers kinetic energy to the parked car.

8 0
3 years ago
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a grape and apple and a watermelon are arranged at the corners of a triangle so that each piece of fruit is three meters away fr
777dan777 [17]
-- There are three pairs of mass with gravitational forces between them.

-- The distances between the masses are the same for each pair.

-- The only other quantity that determines the strength of the gravitational
force is the product of the masses.

-- The product of the masses is greatest for the apple and the watermelon,
so the strength of the gravitational force between them is the greatest.
5 0
3 years ago
A car having an initial velocity of 12 meters per second speed up uniformly to 22 meters per second. This change is made in 4 se
Sonbull [250]

(22-12)/4

10/4

2.5 meters per second sqaured

7 0
3 years ago
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