All categories

3 years ago

How does the electrostatic force compare with the strong nuclear force in the nucleus of an atom?

2 answers:

6 0

The electrostatic force is only repulsive and acts over shorter distances whereas nuclear force is strong and attractive.

Answer: C

Explanation

In an atom, the center part is known as the nucleus of the atom.

Inside the nucleus lies protons and neutrons.

Protons, the positively charged whereas neutrons have no charges but they exert masses in addition to protons.

Each proton repels from each other as they are like charges, resulting in an electrostatic force that is weak and present only in short range.

Aleks [24]3 years ago

5 0

C. The electrostatic force is only repulsive and acts over shorter distance.

You might be interested in

An atom of a certain element has 36 protons, 36 electrons, and a mass number of 84. At room temperature, this element is a very

Grace [21]

Answer:

12 neutrons

Explanation:

The number of protons also shows the atomic number. Therefore the element in question is Krypton (Kr), which also is a noble gas.

Neutrons = Mass number - protons - electrons

Here neutrons = 84 - 36 - 36 = 12

5 0

3 years ago

When hiking at altitude, the air pressure drops to 825,000Pa. Solve the force that site exerts against the side of a rectangular

OLga [1]

Answer:

The force is $1237500N$

Explanation:

We can apply the following expression

$pressure=\frac{Force}{Area}$

To find the area of rectangular tent wall:

$Area=length *width\\Area=2.00m*0.750m\\Area=1.5m^{2}$

Now to find the force:

$pressure=825,000pa$

$pressure=\frac{Force}{Area}$

$Force=pressure*Area\\Force=825000pa*1.5m^{2} \\Force=1237500N$

7 0

2 years ago

Describe why using the simulation is a good method for studying projectiles. Clearly identify the error sources the simulation e

DiKsa [7]

Am not sure
Have a nice day

6 0

3 years ago

A swimming pool, 10.0 m by 4.0 m, is filled with water to a depth of 3.0 m at a temperature of 20.2°c. if the energy needed to r

Tomtit [17]

You need to find the mass of water in the pool.
Find the volume (10 x 4 x 3) = 120 m3

Water has a density of 1000g/m3,so 120 m3 = 120 x 1000 = 120 000 kg

[delta]H = 4.187 x 120 000 x 3.4 (and the units will be kJ)

You then use the heat of combustion knowing that each mole of methane releases 891 kJ of heat so if you divide 891 into the previous answer, you will get the number of moles of CH4

8 0

3 years ago

Read 2 more answers

1) An ice skater with a moment of inertia of 2.2 kg m^2 rotates at a frequency of 0.8 rotations per second. The ice skater tucks

trapecia [35]

Answer:

Explanation:

2.3 kg·m/s²

4 0

3 years ago