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3 years ago

8

How do neutrons keep the nucleas of an atom stable?

1 answer:

Alenkasestr [34]3 years ago

6 0

It is stable if the atom has a full outer shell

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What type of wall would make the best soundproof for room?

algol [13]

It depends, How big is the room. If it was me i would put "High density foam pads" all over the walls in the room, and that would get rid of some sound but put Drywall, or Plasterboard behind the foam pads. That should hopefully get rid of the sound from outside the room, and stop any noise in the background, if your using a mic, for example, a Youtube channel, or Twitch treaming channel. Hope this helps. BYE!!

6 0

4 years ago

A refrigerator had a mass of 73 kg. What is the weight of the refrigerator in newtons

Sophie [7]

Answer:

715.4 N

Explanation:

W = mg

= 73 kg*9.8m/s²

= 715.4 N

3 0

2 years ago

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From left to right, follow the dots in line 1 with your finger. Count a steady beat out loud, and time your motion so your finge

Gnoma [55]

Answer:

A) The rate changes as i move my finger

4 0

3 years ago

Read 2 more answers

What is the potential energy of a falling rock if it has a mass of 64 kg and fell from a height of 54 m

Talja [164]

<u>P.E (Potential Energy) = 33868.8 J</u>

<u>Explanation:</u>

The formula to calculate Potential energy is:

PE = mgh

where PE = potential energy

m = mass of an object

g = acceleration due to gravity

h = height of the object

Here, m = 64 kg

g = 9.8 $m / s^{2}$

h = 54 m

So, substituting the values in the formula:

PE = mgh

= 64 × 9.8 × 54

= <u> 33868.8 J</u>

6 0

4 years ago

It took 150 joules to lift a rock 1.5 meters into the air. How much force did it take to left the rock?

Semmy [17]

Hi there!

We can use the equation:

$\large\boxed{{W = F \cdot d}}$

W = Work (J)

F = Force (N)

d = displacement (m)

We can rearrange to solve for force:

$\large\boxed{F = \frac{W}{d}}$

Plug in the givens:

$F = \frac{150}{1.5} = \boxed{100N}$

4 0

2 years ago