3 years ago

Which prefix represents hundredths in the metric system?

Physics

1 answer:

Volgvan3 years ago

3 0

The prefix your looking for is centi as in centimeter. I got this answer on google.

So please mark me as Brainiest.

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A solid, uniform sphere of mass 2.0 kg and radius 1.8 m rolls from rest without slipping down an inclined plane of height 7.5 m.

Molodets [167]

Answer:

$w^2=5.5rads/s$

Explanation:

From the question we are told that:

Mass $m=2.0kg$

Radius $r=1.8m$

Height $h=7.5m$

Generally the equation for Potential energy is mathematically given by

Potential energy=Kinetic energy+Rotational energy

$mgh=\frac{1}{2}mv^2+\frac{1}{2}Iw^2$

Since there is no slipping

$v=rw$

Therefore

$mgh=\frac{1}{2}mr^2w^2+\frac{1}{2}Iw^2$

Where

$I=\frac{1}{2}mr^2$

$l=3.24m$

$2*9.81*7.5=\frac{1}{2}(2)(1.8)^2w^2+\frac{1}{2}(3.24)w^2\\\\$

$147.15=3.24w^2+1.62w^2$

$w^2=\frac{147.15}{4.86}$

$w^2=\sqrt{\frac{147.15}{4.86}}$

$w^2=5.5rads/s$

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3 years ago

How do we determine the age of rocks and other geologic features?

Mamont248 [21]

Answer:To establish the age of a rock or a fossil, researchers use some type of clock to determine the date it was formed. Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events.

Explanation:

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3 years ago

Which of these sources are used to generate electrical energy in power plants? Check all that apply.

d1i1m1o1n [39]

Natural gas, nuclear reactions, wind, water

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4 years ago

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How is a crowbar used to remove the top of a box change the direction of the force

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The crowbar is placed under a small edge under the top of the box. The crowbar will send the box lid flying from the opposite direction that the crowbar is placed. Please give Brainlest if you understand.

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Ivan

Answer:

A) Miss Sally, Blaze, Lightning, Cinnamon

Explanation:

See photo attached

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