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vovikov84 [41]
2 years ago
6

Identify the scientific law from among the following statements. A) The book fell 1 meter in 0.5 seconds B) Gravity acts upon ea

ch object on the Earth. C) The velocity of the book is 2 meters/second. D) I believe that the book will fall faster outside rather than inside the building. Eliminate Submit
Physics
2 answers:
Zolol [24]2 years ago
5 0

Answer:

The correct answer will be option-B

Explanation:

A scientific law is a statement which provides the description of the natural event in the form of facts so represents the factual description.

The scientific law becomes established only after the repeated experiment by another researcher provides the evidence and supports the scientific statement. The law once become established never changes and remains the same, unlike the scientific theory.

In the given question, the gravity acts on every object have been proved by the repeated experiments` by another researcher and hold true since the time has been stated for the first time.

Thus, Option-B is the correct answer.

zalisa [80]2 years ago
3 0
B is the answer I’m sure.
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Lighting is the static electricity stored in the clouds that is disposed to the earth.
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What is the distance from one crest to the next crest?
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<span>The distance between wave crests is called wavelength. It is a characteristic shared by waves of all kinds, including ocean waves and sound waves. Wavelength is measured from the highest point, or summit, of one wave's crest to the summit of the next wave's <span>crest</span></span>

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3 0
2 years ago
A student drops a rock from a bridge to the water 12.7 m below. with what speed does the rock strike the water? the acceleration
kolezko [41]

The rock strike the water with the speed of 15.78 m/sec.

The speed by which rock hit the water is calculated by the formula

v=\sqrt{2gh}

v=\sqrt{2*9.8*12.7}

v=15.78 m/sec

Hence, the rock strike the water with the speed of 15.78 m/sec.

7 0
2 years ago
If a canadian plane is traveling at 500 miles/hr, how fast is this in m/s?
patriot [66]
223.52 meters per second
6 0
3 years ago
A tank of liquid (SG=0.80) that is 1 ft in diameter and 1.0 ft high is rigidly fixed to a rotating arm having a 2 ft radius. The
IgorLugansk [536]

Answer:

the pressure at B is 527psf

Explanation:

Angular velocity, ω = v / r

ω = 20 /1.5

= 13.333 rad/s

Flow equation from point A to B

P_A+rz_A-\frac{1}{2} Pr_A^2w^2=P_B+rz_B-\frac{1}{2} pr^2_Bw^2\\\\P_B = P_A + r(z_A-z_B)+\frac{1}{2} pw^2[(r_B^2)-(r_A)^2]\\\\P_B = [25 +(0.8+62.4)(0-1)+\frac{1}{2}(0.8\times1.94)\times(13.333)^2[2.5^2-1.5^2]  ]\\\\P_B = 25 - 49.92+551.79\\\\P_B = 526.87psf\\\approx527psf

the pressure at B is 527psf

6 0
3 years ago
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