Answer:
This question is vague because it doesn't specify whether 20° is the angle of incidence or the angle the ray makes with the surface
But If we consider 20° as the angle of Incidence...
The Angle of Reflection = 20° also
Because
From The Law of Reflection
Angle of Incidence = Angle of Reflection
Explanation:
In an Inelastic Collision , the momentum of system is conserved .
In the question ,
it is asked about what happens in inelastic collision .
The Inelastic collision is defined as a collision in which there is a loss of kinetic energy. While the momentum of system is conserved in an inelastic collision, kinetic energy is not.
That's because some kinetic energy gets transferred to something else like ⇒ thermal energy, sound energy, or material deformation .
For Example : Let the two similar trolleys are traveling towards each other and if they collide,
but the trolleys are equipped with magnetic couplers they join together in the collision and behave like a one connected mass. This collision is perfectly inelastic .
Therefore , the details about Inelastic Collision is explained above .
The given question is incomplete , the complete question is
What happens in an inelastic collision ?
Learn more about Inelastic Collision here
brainly.com/question/14521843
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<span> answer>>>>electric force <<<<by the way i don't like physics but i answer this for you ^-^</span>
<span>This is because centripetal force is just the net force of a circular motion. There are no attractive or repulsive forces here. This is not the case here. </span>
<span>The gravitational force is a force reliant on mass and attraction of the masses. There are attractive forces here, but not really repulsive forces. </span>
<span>The electric force is the only one that would make sense because it has to do with a relationship between charges and includes both repulsive and attractive forces.</span>
1) 30 volts is correct
2) Rt = (4x6)/(4+6)=2.4 Ω
3) P = I^2 x R = 36 W
we use AC because it's easy to transmit via 3 phase on cables and easy to step up and down
Answer:
As an object’s temperature increases, the Rate at which it radiates energy increases.