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lisabon 2012 [21]
4 years ago
13

If a (hypothetical) atom with 30 protons and 44 neutrons undergoes alpha decay:

Physics
1 answer:
DerKrebs [107]4 years ago
4 0

Answer:

Protons = 28

Neutrons = 42

Explanation:

Alpha decay is one of radioactive decay in which the atomic nuclei can be illustrated by the emission or loss of helium particles of mass number 4 and proton number of 2

Because mass number is the sum of protons and neutrons, If a (hypothetical) atom with 30 protons and 44 neutrons undergoes alpha decay, 28 protons will be left in the nucleus and 42 neutrons will be left in the nucleus.

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A 1 490-kg automobile has a wheel base (the distance between the axles) of 3.10 m. The automobile's center of mass is on the cen
Kobotan [32]

Answer:

Force on each front wheel = 4711 N

Force on each back wheel = 2591 N

Explanation:

Weight of car = 1490 Kg

Distance of COG from front axle= 1.1 m

Distance of COG from back axle = 3.1 - 1.1 = 2 m

Vertical forces are balanced ,

So, R1 + R2 = mg

R1 + R2 = 1490× 9.8

Thus; R1 + R2 = 14602 - - - eq1

Where

R1 is force on front wheel

R2 is force on back wheel

Now, we know that;

Angular momentum about centre of gravity is zero.

Therefore,

R1 × 1.1 = R2 × 2

R1 = (2/1.1)R2

Put this into equation1, to get;

(2/1.1)R2 + R2 = 14602

R2(2.818) = 14602

R2 = 14602/2.818

R2 = 5182 N and R1 = (2/1.1)5182 = 9422 N

Hence, force on each back wheel = R2/2 = 5182/2 = 2591 N

Force on each front wheel = R1/2 = 9422/2 = 4711 N

4 0
3 years ago
A force of 12N acts to the left on a body and a force of 16 N acts to the right . The size and direction of resultant force is
mash [69]

Answer:

<h2>4 N to the right</h2>

Explanation:

<u>The force acting to the right of the body is acting in the positive x direction while the force acting to the left of the body is acting in the negative x direction.</u>

If a force of 12N acts to the left on a body and a force of 16 N acts to the right, force acting to the left will be -12N while that acting to the right will be +16N.

The resultant force acting on the bod will be the sum of the two forces.

Resultant = -12N+16N

Resultant = 4N

<u>The direction of the resultant force will be towards the right since the resultant is a positive value.</u>

6 0
3 years ago
Which statements describe the results of the effect of angle of insolation on absorption experiment? Check all that apply.
lilavasa [31]

Answer:

At 6 minutes, the soil temperature at a 45° angle of insolation is higher than at 0°.

At 15 minutes, the soil temperature at a 90° angle of insolation is higher than at 45°

Explanation:

5 0
3 years ago
Read 2 more answers
How does electricity flow?
Law Incorporation [45]
1.<span>from low potential to high potential
2. </span><span>A circuit is an unbroken loop of conductive material through which electrons flow continuously.
</span>3. There are two, a series circuit and a parallel circuit.
This is a series because they are all connected 
8 0
3 years ago
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How far will u go if your wheel' diameter 34in?
Lapatulllka [165]
Technically you can go forever on and on, but maybe your question was like how many rotations in a certain distance?
4 0
3 years ago
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