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vagabundo [1.1K]
2 years ago
12

Only 5 questions plz answer.

Physics
2 answers:
Masja [62]2 years ago
6 0
Question 18: a
question 19: b
question 20: c
makvit [3.9K]2 years ago
4 0
18: A
19:B
20:C
:))))))))))())))))))))))))))));):$:$:$:$:$:$
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A light bulb is plugged into a wall outlet (220 V) and it uses 0.68 amps. What is the light bulb’s resistance?
Veronika [31]

Answer:

14.96 amps

Explanation:

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Describe and explain the motion of a small ball floating on a pond when waves travel across the pond
laila [671]
I think the answer is periodic motion.
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3 years ago
Can you please solve this for me urgently want to make sure if my answers are correct?
MA_775_DIABLO [31]

Answer:

<u>Resolving</u><u> </u><u>horizontally</u><u>.</u> :

\sum d_{x} =  - (17.0 \cos 20.0) - (11.0 \cos 35.0) + (30.0 \cos 50.0) + 0 \\  { \underline{d _{x} =  -  5.702 \: m}} \\  \\  \sum d _{y} = (17.0 \sin 20.0) + 12.0 - (11.0  \sin 35.0) - (30.0 \sin 50.0) \\ { \underline{d _{y}  =  - 11.476 \: m}}

therefore, for resultant:

d =  \sqrt{ {d _{y} }^{2} + d _{x}  {}^{2}  }

substitute:

d =  \sqrt{ {( - 5.702)}^{2} +  {( - 11.476)}^{2}  }  \\  \\ d =  \sqrt{164.211}  \\  \\ { \boxed{ \boxed{ \bf{d = 12.8 \: m}}}}

6 0
2 years ago
Water flows at 10 m/s through a pipe with radius 0.025 m. The pipe goes up to the second floor of the building, 2.5 m higher, an
Lera25 [3.4K]

Answer: from the information given, the velocity of the water will decrease but the pipe size will remain the same.

This can be proved with bernoulli's equation.

Explanation: careful analysis of the system using bernoulli's equation of flow is shown in the image attached

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3 years ago
An 85.0-kg mountain climber plans to swing down, starting from rest, from a ledge using a light rope 6.50 m long. he holds one e
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Understanding the given:
85 kg mountain climber
6.50 m long rope
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Thank you for your question. Please don't hesitate to ask in Brainly your queries. 
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3 years ago
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