Answer:
25 degrees
Explanation:
The angle of incidence equals the angle of reflection
It’s used in measuring distance from earth with other celestial object. Hope this helps mark brainest
Answer:
20.3 mm
Explanation:
The force on the charge F = qE where q = charge = +13 µC = +13 × 10⁻⁶ C and E = electric field intensity = +495 N/C.
The acceleration of the charge is thus a = F/m where m = mass of charge = 3.57 × 10⁻⁵ kg.
Its displacement is gotten from
s = ut + at²/2 where u = initial speed = 0 (since the charge starts from rest) and t = 1.5 × 10⁻² s.
s = 0 +at²/2 = at²/2
Substituting a and t into s we have
s = qEt²/2m = +13 × 10⁻⁶ C × +495 N/C × (1.5 × 10⁻² s)²/(2 × 3.57 × 10⁻⁵ kg) = 0.0203 m = 20.3 mm
Answer:
False. The net force is Zero
Explanation:
To answer this question we propose the solution of the problem.
We have a toy where balls come in and out after crashes between them, this toy forms our system, so all the balls are parts of the system, when the balls collide with each other according to Newton's third law force and action and reaction, so it has the same magnitude, but opposite direction, this is each is applied to some of the objects.
In conclusion of the previous one for the system the net force is Zero, all are internal. Therefore, the only thing that happens is a redistribution of speeds according to the conservation of the moment.
Let's review the answer.
False. The net force is Zero