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olga2289 [7]
2 years ago
5

A car drives 215 km east and then 45 km north. What is the magnitude of the car’s displacement? Round your answer to the nearest

whole number.
Physics
2 answers:
Goryan [66]2 years ago
8 0
You use the Theorem of Pythagoras:
Imagine the Car is driving: when it turns left to drive north This has to be an 90 degree angle:
^
---> |

But the displacement is Always the shortest Line between the start and the end and in This case it is a Line which creates a triangle.
In a triangle With a right angle you can use Pythagoras:
215^2+45^2=c^2
v=√(215^2+45^2)
bogdanovich [222]2 years ago
5 0

Answer:

220

Explanation:e2020

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Three 20.0 ohm resistors are
V125BC [204]

Answer:

6.67 ohm

Explanation:

From the question given above, the following data were obtained:

Resistor 1 (R₁) =20 ohm

Resistor 2 (R₂) = 20 ohm

Resistor 3 (R₃) = 20 ohm

Equivalent Resistance (R) =?

Since the resistors are arranged in parallel connection, the equivalent resistance can be obtained as follow:

1/R = 1/R₁ + 1/R₂ + 1/R₃

1/R = 1/20 + 1/20 + 1/20

1/R = (1 + 1 + 1) / 20

1/R = 3/20

Invert

R = 20/3

R = 6.67 ohm

Therefore, the equivalent resistance is 6.67 ohm.

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2 years ago
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GaryK [48]
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Erosion happens 'cuz the surface get frozen and beaten by the ocean. (they kinda rhyme) :)
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~OR~
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5 0
2 years ago
I need help please and thanks
asambeis [7]

Answer:

c

Explanation:

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atroni [7]

Explanation:

3: the electricity is generated in the permanent magnet

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