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sergejj [24]
3 years ago
5

Question is in the picture :,)

Physics
1 answer:
xenn [34]3 years ago
5 0

Answer:

C

Explanation:

When the dwarf planet in the Kuiper belt was discovered, scientists demoted pluto to "dwarf planet" because it was very similar to the other dwarf

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nods 40th anniversary rid off e 49en9 snns

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3 years ago
What are some indicators of energy transformations?
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Explanation:

Contact, vision, sound, flavor, and smell are all markers of energy transformations. The most basic example would be when we notice something has begun to pass through vision. Whenever an entity accelerates or slows down, energy is constantly transformed.

5 0
3 years ago
Say you want to make a sling by swinging a mass M of 1.9 kg in a horizontal circle of radius 0.042 m, using a string of length 0
padilas [110]

Answer: T= 715 N

Explanation:

The only external force (neglecting gravity) acting on the swinging mass, is the centripetal force, which. in this case, is represented by the tension in the string, so we can say:

T = mv² / r

At the moment that the mass be released, it wil continue moving in a straight line at the same tangential speed that it had just an instant before, which is the same speed included in the centripetal force expression.

So the kinetic energy will be the following:

K = 1/2 m v² = 15. 0 J

Solving for v², and replacing in the expression for T:

T = 1.9 Kg (3.97)² m²/s² / 0.042 m = 715 N

3 0
3 years ago
How could you use the physical properties of melting poin and boiling point to identify a substance?
Vanyuwa [196]

By comparing the melting and the boiling points of the test substance to that of the substances that are recorded in the literature, we can be able to obtain the identity of a substance.

<h3>What is melting point?</h3>

The melting point is the point at which the solid would change to liquid. The boiling point is the point at which a liquid would change to gas. Now we know that the melting and the boiling point of a signature of a compound and can be used to identify a pure substance.

Hence, by comparing the melting and the boiling points of the test substance to that of the substances that are recorded in the literature, we can be able to obtain the identity of a substance.

Learn more about melting point:brainly.com/question/25777663

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7 0
1 year ago
A solid circular rod is used to transmit power from a motor to a machine. The diameter of the rod is D = 1.5 in and the machine
Aneli [31]

Explanation:

Below are attachments containing the solution.

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