What time of day does the full moon rise? (Estimate the hour: 1 pm? 2pm? etc. and explain your answer.)

Physics

1 answer:

AlexFokin [52]2 years ago

7 0

Explanation:

1. The full Moon rises just after the Sun sets. So lets assume the Sun sets at 06:00 pm then the Moon will rise at 06:00 pm. This happens because of the position of Moon with respect to Sun. It is opposite to the Sun as seen from Earth.

2. Lets assume that Sun rise will happen at 06:00 am so Moon will be visible till 06:00 am and it will reach highest point in the Sky at 00:00 am that is midnight. This is the time when it will cross the meridian line.

3. No, we can never see the Sun going through phases no matter where we are. The Moon shows us phases because it doesn't have its own light and reflects light of the Sun. But Sun is a star and has it own light. Sun will always be seen like a full circle.

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How will a current change if the resistance of a circuit remains constant while the voltage across the circuit decreases to half

beks73 [17]

Answer:

1. The current will drop to half of its original value.

Explanation:

The problem can be solved by using Ohm's law:

$V=RI$

where

V is the voltage across the circuit

R is the resistance of the circuit

I is the current

We can rewrite it as

$I=\frac{V}{R}$

In this problem, we have:

- the resistance of the circuit remains the same: R' = R

- the voltage is decreased to half of its original value: $V'=\frac{V}{2}$

So, the new current will be

$I'=\frac{V'}{R'}=\frac{V/2}{R}=\frac{1}{2}\frac{V}{R}=\frac{I}{2}$

so, the current will drop to half of its original value.

4 0

2 years ago

The magnetic field at 8 cm distance from a long straight wire, carrying is 0.2x10^-5 T. How much is the electric current in the

FrozenT [24]

Answer:

The electric current in the wire is 0.8 A

Explanation:

We solve this problem by applying the formula of the magnetic field generated at a distance by a long and straight conductor wire that carries electric current, as follows:

$B=\frac{2\pi*a }{u*I}$