3 years ago

_______ are atoms that carry an electric charge.

Physics

2 answers:

Mariulka [41]3 years ago

8 0

i belive the correct answer is D

Ganezh [65]3 years ago

7 0

Ions is the answer i believe

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gogolik [260]

The Netherlands controlled Indonesia for centuries!

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3 years ago

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The speed of a 2.0-kg object changes from 30 m/s to 40 m/s during a 5.0-second time interval.

AnnyKZ [126]

Answer:

F = 2 * 30 / 5 = 12 N to stop forward motion

F = 2 * 40 / 5 = 16 N to accelerate to 90 degrees

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3 years ago

An object has a mass of 60 kg. It decelerates from 50 m/s to 20 m/s when a resultant force of 300 N acts on it. For how long doe

Pavlova-9 [17]

Force=300N
Mass=60kg

Find Acceleration

$\\ \rm\longmapsto F=ma$

$\\ \rm\longmapsto a=\dfrac{F}{m}$

$\\ \rm\longmapsto a=\dfrac{-300}{60}$

$\\ \rm\longmapsto a=-5m/s^2$

Now

u=50m/s
v=20m/s

Using 1st equation of kinematics

$\\ \rm\longmapsto v=u+at$

$\\ \rm\longmapsto t=\dfrac{v-u}{a}$

$\\ \rm\longmapsto t=\dfrac{20-50}{-5}$

$\\ \rm\longmapsto t=\dfrac{-30}{-5}$

$\\ \rm\longmapsto t=6$

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3 years ago

If an object has a mass of 25 grams and a volume of 5 mL, then what is the density of the object?

vazorg [7]

Answer:

Explanation:

density = mass/volume

density = 25g /5 mL

density = 5

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3 years ago

What are the two key elements needed for fossilization

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Body Fossils and Trace Fossils.

Hope I helped and good luck with school. Bye!

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