Explanation:
Given parameters:
Distance hopped = 84m
Displacement = 84m due east
Time = 7s
Unknown:
Speed of kangaroo = ?
Velocity of kangaroo = ?
Solution:
To solve this problem,
Speed =
=
= 12m/s
Velocity =
=
= 12m/s due east
Answer:
more point plzzzzz... eeeeeeeee
Answer:
I = 0.2 A
Explanation:
The current flowing across each resistor in a series arrangement is the same throughout the circuit. So in order to calculate the current, we must first find the equivalent resistance of all three resistors. The equivalent resistance of the resistors connected in series is given as:
![R = R_{1} + R_{2} + R_{3}\\R = 10\ ohm + 15\ ohm + 20\ ohm \\R = 45\ ohm](https://tex.z-dn.net/?f=R%20%3D%20R_%7B1%7D%20%2B%20R_%7B2%7D%20%2B%20R_%7B3%7D%5C%5CR%20%3D%2010%5C%20ohm%20%2B%2015%5C%20ohm%20%2B%2020%5C%20ohm%20%5C%5CR%20%3D%2045%5C%20ohm)
Now we use Ohm's law for the current:
![V = IR\\\\I = \frac{V}{R}\\\\I = \frac{9 volts}{45\ ohms}\\](https://tex.z-dn.net/?f=V%20%3D%20IR%5C%5C%5C%5CI%20%3D%20%5Cfrac%7BV%7D%7BR%7D%5C%5C%5C%5CI%20%3D%20%5Cfrac%7B9%20volts%7D%7B45%5C%20ohms%7D%5C%5C)
<u>I = 0.2 A</u>
Answer:
through nuclear fusion
Explanation:
The burning of the sun is not chemical combustion. It is nuclear fusion. This combustion releases energy which we experience as the heat and light given off by the flame.
Answer:
Sun
Explanation:
Sun Can Give Us Light Energy And It convert Into Heat Energy