Answer:
A particle that has gained: Anion
A particle that has lost: Cation
Explanation:
<span>a decrease in the distance between the earth and the moon</span>
Answer:
a)188.65m
b)154.35m
c)243.7m
Explanation:
Given data:
(a) The distance from the kicker to each of the 2 spectators is given by:
where,
v= speed of sound
=time taken for the sound waves to reach the ears
m
(b)
where,
v= speed of sound
=time taken for the sound waves to reach the ears
(c)As the angle b/w slight lines from the two spectators to the player is right angle,
hypotenuse=the distance b/w 2 spectators
and, the slight lines are the other 2 lines
Answer: Got it!
Explanation: The water in a river flows uniformly at a constant speed of 2.50m/s between two parallel banks 80.0m apart. You are to deliver a package directly across the river, but you can only swim at 1.5m/s.
If she measures the angle between the mirror and an incident ray and finds that it is 30°, then the angle of the incidence would be 60° and the angle of the reflection would be 60° as well because of the laws of the reflection.
<h3>What is the law of reflection?</h3>
The law of reflection states that when a ray of light reflects back from a surface the angle of incidence of light on a surface is equal to the angle of reflection.
As given in the problem statement A student does an experiment with a mirror. She measures the angle between the mirror and an incident ray and finds that it is 30°.
the angle of incidence = 90° - 30°
=60°
As per the laws of the reflection
the angle of the incidence = angle of reflection
the angle of the reflection = 60°
Thus, the angle of the incidence would be 60° and the angle of the reflection would be 60° as well.
To learn more about the law of reflection here;
brainly.com/question/18772331
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