True
Explanation:
- If the force applied applied on a cart increases, the acceleration of the cart increases when the mass is held constant is very true.
Force and acceleration are directly proportional to one another: F = m x a
m is the mass and a is the acceleration.
- According to Newton's second law, "the acceleration of an object is directly proportional to the net force acting upon it and inversely proportional to its mass".
- The higher the force on an object, the faster it will accelerate.
Learn more:
Newton's law of motion brainly.com/question/11411375
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The vacuole, its main job is to get rid of waste and water inside the cell.
A transverse wave is a wave in which particles of the medium vibrate perpendicular to the direction that the wave travels.
Answer:
c. Fission and fusion are two processes that release very little amounts of energy.
Explanation:
This statement is false. In fact, both fission and fusion are processes which release very large amounts of energy. The statement can be rewritten as it is true as follows:
"Fission and fusion are two processes that release very large amounts of energy."
Fission occurs when a large nucleus break apart, splitting into smaller nuclei, while fusion occurs when two light nuclei combine together into a larger nucleus. In both cases, the mass of the reactants is larger than the mass of the final products, so some of the mass has been converted into energy, according to Einstein's equation:
where
E is the energy released
is the mass lost in the process
c is the speed of light
Since c is a very large number (), we see that even a very small mass causes the released of a huge amount of energy, so both fission and fusion release large amounts of energy.
The answer for the following problem is mentioned below.
The option for the question is "A" approximately.
- <u><em>Therefore the elastic potential energy of the string is 20 J.</em></u>
Explanation:
Given:
Spring constant (k) = 240 N/m
amount of the compression (x) = 0.40 m
To calculate:
Elastic potential energy (E)
We know;
<em>According to the formula;</em>
E = × k × x × x
<u>E = </u><u> × k ×(x)²</u>
where;
E represents the elastic potential energy
K represents the spring constant
x represents amount of the compression in the string
So therefore,
Substituting the values in the above formula;
E = × 240 × (0.40)²
E = × 240 × 0.16
E = × 38.4
E = 19.2 J or approximately 20 J
<u><em>Therefore the elastic potential energy of the string is 20 J.</em></u>