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barxatty [35]
3 years ago
14

Why are there multiple versions of the scientific method?

Physics
1 answer:
qwelly [4]3 years ago
5 0

Answer:

If the experiment works and the data is analyzed you can either prove or disprove your hypothesis.

Explanation:

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Any Acellus folk figure out the answer to this one??? I CANNOT for the life of me.
Olin [163]

Answer:

-0.10472\frac{rad}{s}

Explanation:

Remember that any <u><em>clockwise</em></u> rotation is considered negative, and any <u><em>counterclockwise</em></u> rotation is considered positive.

The formula for period is:

T = \dfrac{2\pi}{\omega}

Solve for \omega\\ and you get:

\omega=\dfrac{2\pi}{T}

The period is 60 seconds so make that division and you're left with -0.10472\frac{rad}{s} or -0.10\frac{rad}{s} if significant figures apply (negative because the rotation is clockwise).

3 0
2 years ago
A ball is thrown vertically downwards with a speed 7.3 m/s from the top of a 51 m tall building. With what speed will it hit the
ddd [48]

Answer:

32.46m/s

Explanation:

Hello,

To solve this exercise we must be clear that the ball moves with constant acceleration with the value of gravity = 9.81m / S ^ 2

A body that moves with constant acceleration means that it moves in "a uniformly accelerated motion", which means that if the velocity is plotted with respect to time we will find a line and its slope will be the value of the acceleration, it determines how much it changes the speed with respect to time.

When performing a mathematical demonstration, it is found that the equations that define this movement are the follow

\frac {Vf^{2}-Vo^2}{2.a} =X

Where

Vf = final speed

Vo = Initial speed =7.3m/S

A = g=acceleration =9.81m/s^2

X = displacement =51m}

solving for Vf

Vf=\sqrt{Vo^2+2gX}\\Vf=\sqrt{7.3^2+2(9.81)(51)}=32.46m/s

the speed with the ball hits the ground is 32.46m/s

8 0
3 years ago
Read 2 more answers
What physical quantity is a measure of the amount of inertia an object has?
allochka39001 [22]
<span>mass and only mass ................</span>
3 0
3 years ago
Heather and Jerry are standing on a bridge 60 m above a river Heather throws a rock straight down with a speed of 14 m/s. Jerry,
melisa1 [442]

Answer:

Time elapsed   = 2.856

SECOND ROCK HAS FASTER SPEED

Explanation:

This can be achieved in 2 ways, and it is clear from the careful study that the travel time is attributed to the time required to cross the path above the bridge by the 2nd stone  i.e.

14 = 9.8 * t

t = 1.428 sec and

time between 2 splash  = 2 * 1.428 = 2. 857 sec

2nd way

let time for 1st spalsh be t and

second splash be t1.

from equation of motion

so 60 = 14t + 0.5 * 9.8 * t * t

4.9 t^2 + 14t -60 = 0

On solving, we get t = 2.351 sec

for t_1, we have some extra time, which can be divided into t2 and t3.

14 = 9.8 * t2

t2 = 1.428 sec  

total time taken by 2 is

T = 1.428 + 1.428 + 2.351

so we get t_1 = 5.207 sec

time elapsed is  = T - t

                           = 5.207 - 2.351

Time elapsed   = 2.856

SECOND ROCK HAS FASTER SPEED

4 0
3 years ago
In a population of seals, most of the seals have similar coloring. However, one seal has albinism. This seal is white and is alm
timofeeve [1]
<span>The cause of albinism in one seal in a population of seals with similar coloring is gene mutation. Albinism is a recessive trait caused by a mutation in the gene for the enzyme which is important in melanin synthesis. Since melanin is a pigment responsible for hair and skin colour, the gene mutation will cause the absence of melanin and thus, albinism.</span>
6 0
3 years ago
Read 2 more answers
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