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I am Lyosha [343]
3 years ago
5

A plane accelerates from 25 m/s to a velocity of 80 m/s in a time of 5 seconds. What

Physics
1 answer:
Natali [406]3 years ago
6 0

Answer:

-7

Explanation:

-7 because -7 said so

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Trying to explain a solar eclipse is an example of?
zimovet [89]

Answer:

scientific inquiry.

Explanation:

scientific inquiry. Scientific inquiry encompasses the many methods through which scientists investigate the nature of reality and provide interpretations based on the data gathered.

4 0
2 years ago
A high fountain of water is located at the center of a circular pool. Not wishing to get his feet wet, a student walks around th
Alisiya [41]

Answer:

The fountain is 3.43 m high.

Explanation:

Circumference of the pool = 15 m.

C = 2\pir

where C is the circumference and r its radius.

r = \frac{C}{2\pi }

 = \frac{15}{2(\frac{22}{7}) }

r = 2.3864

radius of the pool = 2.40 m

So that the height of the fountain, h, can be determined by applying trigonometric function.

Tan θ = \frac{opposite}{adjacent}

Tan 55 = \frac{h}{2.4}

h = Tan 55 x 2.4

  = 1.4282 x 2.4

  = 3.4277

h = 3.43 m

The height of the fountain is 3.43 m.

8 0
3 years ago
13. A steel block has a volume of 0.08 m³ and a density of 7,840 kg/m³. What is the force of gravity acting on the block (the we
Contact [7]
A. 6,7000.56n is the correct choice according to siri lol
5 0
3 years ago
Read 2 more answers
you have one 100 ohm resistor what size resistor must you hook up in parallel in order to have a resistance of 99.0
romanna [79]

Answer:

The resistor to be hooked up must be 9900 \Omega

Explanation:

Recall how resistors in parallel combine to render an equivalent resistor:

\frac{1}{R_e} =\frac{1}{R_1} +\frac{1}{R_2}

So we need to find which resistor (R2) we need to combine in parallel with resistor R1 (100 \Omega) in order to obtain an equivalent resistor Re (99 \Omega) :

\frac{1}{99} =\frac{1}{100} +\frac{1}{R_2}\\\frac{9900\,R_2}{99} =\frac{9900\,R_2}{100} +\frac{9900\,R_2}{R_2}\\100\,R_2= 99\,R_2+9900\\R_2=9900\,\,\Omega

7 0
3 years ago
Tension force ........... throughout a string that changes direction over a pulley.
vodka [1.7K]

Answer:

"is constant"

4 0
3 years ago
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