True.
There is heat energy, for example, and it doesn't involve motion.
Answer:
They are equal
Explanation:
Newton 3rd Law of motion states that for every force applied or action there is usually an equal and opposite force.
Impulse = Force * time
It is measured in Newton seconds.
The force and time of collision is the same which translates to an equal impulse by both scenarios.
<span>b) moving at a constant speed
velocity references movement in a specific direction, speed only references movement in general</span>
Answer:
All of the statements are correct
Explanation:
Hello!
All of the statements are rigth. You can know this by examining the Lorentz Force:
a )
The dependence on the charge sign can be inferrend by the term q which is the particle's charge. If it changes sign, the force also does.
b)
Although we usually deal with constant magntic Fields, they could also be position dependent, for example the magnetic field of a wire. The fild of teh force will also inherit this position dependence, that is:
c)
d)
Again, from the equation of the force or Lorentz force, we can see that this statement is true.
d)
The validity of this statement is given by the cross product between the velocity (which points twoards the direction of motion of the particle) and the magnetic field
The answer is D. because i just took the quiz so yeah