Answer:
The speed of electron is
Explanation:
Given that,
Energy density = 0.1 J/m³
Separation = 0.2 mm
We need to calculate the potential difference
Using formula of energy density
We need to calculate the speed of electron
Using energy conservation
Put the value into the formula
Hence, The speed of electron is
<span>So we want to know what is the change in isotopes over time due to the emission of radioactive particles. The radioactive decay is the process of emiting particles from the nucleus of the atom. The consequence is that the amount of the radioactive material is loosing its mass over time by emmiting energy or particles. It can be alpha particles- those are helium nucleus, beta particles- those are electrons and it can be gamma particles- those are high energy photons. So the correct answer is D, Radioactive decay.</span>
<u>Option a.</u>The particle of larger mass has more momentum.
How this is explained?
- Given two particles are of different mass & start from rest .
- They have same net force & distance travelled due to force is also constant.
- We know Kinetic energy
- and momentum p = mv .
- The same gives larger mass a smaller acceleration.
- The body which has larger mass will take a longer time interwal to move through same distance; the impulse given to larger mass is larger, thus larger mass will have a greater final momentum.
- Thus option(a).
What is a momentum?
- In Newtonian mechanics, linear momentum, translational momentum, or simply momentum is the product of the mass and velocity of an object.
- It is a vector quantity, possessing a magnitude and a direction.
- If m is an object's mass and v is its velocity (also a vector quantity), then the object's momentum p is :p=mv.
- In the International System of Units (SI), the unit of measurement of momentum is the kilogram metre per second (kg⋅m/s), which is equivalent to the newton-second.
To know more about momentum, refer:
brainly.com/question/1042017
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Moves in waves, cannot be created, the ability to do work, and can change form (potential to kinetic and vice versa).