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Nina [5.8K]
3 years ago
9

How does the sun rise and set

Physics
1 answer:
MatroZZZ [7]3 years ago
8 0

Answer:

c. earth rotates on it tilted axis and orbit around the sun at the same time​

Explanation:

Earth rotation can be defined as the amount of time taken by planet earth to complete its spinning movement on its axis.

This ultimately implies that, the rotation of earth refers to the time taken by earth to rotate once on its axis. One spinning movement of the earth on its axis takes approximately 24 hours to complete with respect to the sun. Thus, this makes us to experience day and night (sun rise and sun set) due to the rotation of planet about its axis.

Hence, the sun rise and set because the earth rotates on it tilted axis and orbit around the sun at the same time​

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How far will a rubber ball fall on 20 seconds?
Shtirlitz [24]

Given that:

time (t) = 20 s ,

        S = ?

We know that S = ut + 1/2 at²     meters

                       since free fall, a = g = 9.81 m/s² ; u =0 ;

                        S = 0 + 1/2 × 9.81 × 20²

                        <em> S= 1962 m</em>

7 0
4 years ago
A 65 kg cart travels at a constant speed of 4.6 m/s. What is its kinetic energy?
Talja [164]

Answer:

Explanation:

mass (m) = 65 kg

velocity (v) = 4.6 m/s

Kinetic energy (KE)

= 1/2 * m * v²

= 1/2 * 65 * 4.6²

=  687.7 J

hope it helps :)

7 0
3 years ago
Three resistors are connected in parallel. If placed in a circuit with a 12-volt power supply. Determine the equivalent resistan
Ivan

(a) The equivalent resistance of three parallel resistors is (R₁R₂R₃)/(R₁R₂ + R₁R₃ + R₂R₃).

(b) The total circuit current is 12/R.eq.

(c) The voltage drop across and current in each resistor is IR₁, IR₂ and IR₃.

<h3>Equivalent resistance of three parallel resistors</h3>

The equivalent resistance of three parallel resistors is calculated as follows;

  • Let the first resistor = R₁
  • Let the second resistor = R₂
  • Let the third resistor = R₃

\frac{1}{R_{eq}} = \frac{1}{R_1} + \frac{1}{R_2} + \frac{1}{R_2}\\\\R_{eq} = \frac{R_1R_2R_3}{R_1R_2 + R_2R_3 + R_1R_3}

<h3>Total Circuit Current </h3>

The total circuit current is calculated as follows;

V = IR

I= \frac{V}{R_{eq}} = \frac{12 \ V}{R_{eq}}

<h3>Voltage drop in each resistor</h3>

Voltage drop in resistor 1 = IR₁

Voltage drop in resistor 2 = IR₂

Voltage drop in resistor 3 = IR₃

Learn more about parallel circuit here: brainly.com/question/80537

#SPJ1

3 0
2 years ago
Is it accurate to describe the physical universe as composed of only matter and energy?
Dennis_Churaev [7]
Yes, it is <span>accurate to describe the physical universe as composed of only matter and energy. Some people might argue about the dark matter, but it is not yet defined properly. Different universes can be made up of different compositions but it is a fact that our universe is made of matter and energy. </span>
7 0
3 years ago
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I have 510 missing assignments on edg, Any tips on catching up?
RSB [31]

Answer:

Take notes

Explanation:

Cuz it helps you stay on task

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