1). the total voltage between the ends of the series circuit was constant.
The resistance of the circuit and the current through the circuit changed.
2). The voltage between the end terminals of the parallel circuit is constant.
The resistance of the circuit and the current through the circuit changed.
3). So that you can avoid building a circuit that needs more current
than your battery can supply, and also to be sure and choose a battery
or power supply that's able to deliver the amount of current that your
circuit needs.
Trueeeeeee
The frequency of a wave remains constant if the medium, temperature, and pressure do not change.
Answer:
49.6°
Explanation:
= Unpolarized light
= Light after passing though second filter = 
Polarized light passing through first filter

Polarized light passing through second filter

The angle between the two filters is 49.6°
Answer:
The water on the side of the Earth facing the Moon
Answer: 20.4 miles
Explanation:
Here we need to use the equation:
Velocity = Distance/Time.
Initially we have that he can travel 30 miles in 2 hours, so the velocity is:
V = 30mi/2h = 15mph
Now, we reduce the velocity by 3 mph, so the new velocity is 15mph - 3 mph = 12mph.
Now we want to know the distance traveled in 1.7 hours with this velocity, this is.
Velocity*Time = Distance
12mi/h*1.7h = 20.4 miles