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Rainbow [258]
3 years ago
11

#1: When you squeeze an air-filled balloon, what happens inside?

Chemistry
1 answer:
julia-pushkina [17]3 years ago
3 0
<span>When you squeeze an air-filled balloon, you are decreasing its volume. Imagine a ball going at a constant speed between two walls that are 10 feet apart vs. 1 feet apart. You can imagine that when the walls are only 1 feet apart, the ball will hit the walls more times. Therefore, the answer is A. You are correct.</span>
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A poundal is the force required to accelerate a mass of 1 lbm at a rate of 1 ft/s2, and a slug is the mass of an object that wil
Darya [45]
Remember the formula as per the second Law of Newton: F = m*a

And also remember that the weight is the force with which the mass is attracted by the planet (or satellite in the case of the moon).

With that information you can answer the questions:

a) Weight = F = m*a

m = 175 slugs = 175 lbm

i) Earth

a = 32.17 ft/s^2

Weight on Earth = 175 lbm * 32.17 ft / s^2 = 5,629.75 poundal

ii) Moon

a = [1/6] 32.17 ft/s^2

Weight on the Moon = [1/6]*5,629.75 poundal = 938.29 poundal

b) Force = 355 poundal
m = 25.0 slug

a in m/s^2 = ?

First calculate the force in ft/s^2

F = m*a => a = F/m = 355 poundal / 25.0 slug = 14.2 ft/s^2

Conversion:

14.2 ft / s^2 * [ 0.3048 m/ft] = 4.32816 m/s^2

Answer: 4.33 m/s^2


8 0
3 years ago
A piece of copper is placed into silver nitrate. Given that the activity of copper is greater than that of silver, what will hap
DerKrebs [107]

Answer:

D

Explanation:

This is because, of chemical reaction

8 0
3 years ago
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Which of the following values is measured the LEAST precisely? * 22mL 45.2mL 50mL 100mLchem​
nekit [7.7K]

Answer:

If you're looking at the data as a whole, it would most likely be 100ml.

Explanation: The definition of precise is data close together so 100ml is furthest away from the other recorded numbers

7 0
3 years ago
How many carbon atoms are there in 2 molecules of CCI
Anettt [7]

Answer:

Explanation:

No moraculos si a minha memoria não me trai acho temus 2tomos d carbono

4 0
3 years ago
Evidence for the existence of neutrons did not come until many years after the discoveries of the electron and the proton. Give
deff fn [24]

As there was no electric charge on neutrons, and they did not get affected by electromagnetic fields.

Explanation:

The functions of the neutron in atoms is:

To hold the nuclei with coulombic repulsion between the protons.

The neutron has no charge on it and hence were not discovered.

Its mass is slightly less than the proton.

It provides stability to the atom.

Lord Chadwick is credited to prove the existence and discovery of neutron.

He proved that the nucleus of the atom has its mass in the centre as neutron+ proton.

He bombarded beryllium with alpha particles, and found high energy radiation.

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