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AfilCa [17]
3 years ago
7

A chief finds a glittering stone which he shows to the family. The family assures him that the stone is pure gold but he doubts.

Prepare a message of what you can do with the stone to give the chief and his family the advice
Physics
1 answer:
Nina [5.8K]3 years ago
5 0

I will tell the Chief about the high worth of the Gold and the various

substances it can be used to produce.

<h3>What is Gold?</h3>

Gold is a naturally occurring element with a bright, slightly orange yellow

color. It has a high value and can be used in the production of various

substances such as:

  • Jewelries
  • Medals and awards
  • Arts etc.

The Chief should however be told about the high worth value of Gold and

the various things it can be used for so he can make a decision.

Read more about Gold here brainly.com/question/1159978

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Se lanza una piedra de 3.00 N verticalmente hacia arriba desde el suelo. Se observa que, cuando está 15.0 m sobre el suelo, viaj
BARSIC [14]

Answer:

(a). The speed at the moment of being thrown is 30.41 m/s.

(b). The maximum height is 47.18 m.

Explanation:

Given that,

Weight of stone = 3.00 N

Height = 15 m

Speed = 25.0 m/s

(a). We need to calculate the speed at the moment of being thrown

Using work energy theorem

W=\dfrac{1}{2}m(v_{2}^2-v_{1}^2)

-mg\times d=\dfrac{1}{2}m(v_{2}^2-v_{1}^2)

Put the value into the formula

-9.8\times15=\dfrac{1}{2}\times(v_{2}^2-v_{1}^2)

-2\times9.8\times15=25^2-v_{1}^2

-v_{1}^2=-300-25^2

v_{1}=\sqrt{925}

v_{1}=30.41\ m/s

(b). We need to calculate the maximum height

Using work energy theorem

[tex]W=\dfrac{1}{2}mv_{2}^2-\dfrac{1}{2}mv_{1}^2

mg\times d=\dfrac{1}{2}mv_{2}^2-\dfrac{1}{2}mv_{1}^2

Here, \dfrac{1}{2}mv_{2}^2=0

-(mg)\times d=\dfrac{1}{2}mv_{1}^2

d=\dfrac{v_{1}^2}{2g}

Put the value into the formula

d=\dfrac{30.41^2}{2\times9.8}

d=47.18\ m

Hence, (a). The speed at the moment of being thrown is 30.41 m/s.

(b). The maximum height is 47.18 m.

6 0
3 years ago
Element with atomic number 31
frutty [35]
Gallium is a chemical element with symbol Ga and atomic number 31. Elemental gallium does not occur in free form in nature, but as the gallium(III) compounds that are in trace amounts in zinc ores and in bauxite.
6 0
3 years ago
What is the relationship between mass and acceleration on an object when the force is held constant?
Andreyy89

Answer:

according to newtons second law of motion,

Force = mass * acceleration

The acceleration of the body is directly proportional to the net force acting on the body and inversely proportional to the mass of the body.

I. e mass and acceleration are directly proportional to each other.

8 0
3 years ago
Suppose you wish to whirl a pail full of water in a vertical circle at a constant speed without spilling any of its contents (ev
Yanka [14]

Answer:

V = 2.87 m/s

Explanation:

The minimum speed required would be that at which the acceleration due to gravity is negated by the centrifugal force on the water.

Thus, we simply need to set the centripetal acceleration equal to gravity and solve for the speed V using the following equation:

Centripetal acceleration = V^2 / r

where r is the distance of water from the pivot or shoulder.

For our case, r will be 0.65 + 0.19 = 0.84 m

and solving the above equation we get:

9.81 = V^2 / 0.84

V^2 = 8.2404

V = 2.87 m/s

6 0
3 years ago
QUESTION: A study group of students is reviewing claims in an article that gamma rays are among the most dangerous type of elect
Lubov Fominskaja [6]

B

Bias is an inclination towards one way of thinking due to inherent factors in our environment, such as how one was brought up.

Explanation:

In science, biases, conscious or unconscious, tend to make experiments’ results to incline in particular way rather than being impartial. Peer- review of scientific journals by the scientific community is meant to be a quality assurance measure to detect such biases. The students should check reviews of the scientific community on the article and see if any biases have been pointed out.  Probably the institution that the scientist works for is in competition with another institution that deals with gamma rays.

Learn More:

brainly.com/question/1903490

brainly.com/question/8480257

#LearnWithBrainly

4 0
3 years ago
Read 2 more answers
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