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Ivenika [448]
3 years ago
7

An unknown mineral is scratched by a penny. It must _____.

Physics
2 answers:
Tanya [424]3 years ago
8 0
The answer is a I think
koban [17]3 years ago
3 0

Answer:

It would be softer than a diamond

Explanation:because i had it on my test

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A communication satellite is in a circular path orbit around Earth. If the speed of the satellite is constant, the net force act
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is changing in direction, but constant in magnitude

Explanation:

This question is a bit tricky since the velocity of the satellite is changing, but the speed is constant.

Speed is simply a measure of how fast you are going. It doesn't matter where you're going, just how quickly.

Velocity, on the other hand, does care about which direction you're going. For example, it could be then when you travel right, your velocity is positive, and when you travel left, your velocity is negative. This is the similar for a 2D shape like a circular orbit

Since we know velocity is changing, there must be acceleration which changes that velocity (since acceleration <em>is</em><em> </em>the change in velocity: going from 0 to 60 mph, for example)

Thus, with a non-zero net acceleration, we know that there must be a force that is changing in direction, but constant in magnitude (since the orbit is a circle, and always attracted to the center of the Earth at equal distance).

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you can determine the wavelength

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Leta stetter hollingworth conducted pioneering work on __________. a. identity development in ethnic minorities b. cognitive pro
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D.  Leta stetter hollingworth conducted pioneering work on <u>adolescent development and gifted children</u>.

<h3>Who is Leta stetter hollingworth?</h3>

Leta stetter hollingworth is an early feminist and active member of the Women's Suffrage Party.

Leta Stetter Hollingworth is best known for her landmark contributions to the psychology of women and to education of the gifted. That is adolescent development and gifted children.

Thus, we can conclude that Leta stetter hollingworth conducted pioneering work on <u>adolescent development and gifted children</u>.

Learn more about Leta stetter hollingworth here: brainly.com/question/2680369

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PLEASE HELP. I NEED THIS FOR TOMMOROW. WILL GIVE BRAINLIEST ​
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Ansthethethethethe

the is the is

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