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Alik [6]
3 years ago
7

What best describes electrons

Physics
1 answer:
lyudmila [28]3 years ago
4 0

Answer: A negatively charged particle that is found in atoms.

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Optimus Prime is flying straight up at 24 m/s when he accidentally drops his mega-ray blaster and it falls 94 m to the ground be
natali 33 [55]

Answer:

The time it will take the mega-ray blaster to hit the ground is 2.57 s.

Explanation:

Given;

initial velocity of Optimus Prime, u = 24 m/s

height of fall of the mega-ray blaster, h = 94 m

The time of fall of the mega-ray blaster is calculated using the following kinematic equation;

h = ut + \frac{1}{2}gt^2\\\\94 = 24t +  \frac{1}{2}(9.8)t^2\\\\94 = 24t + 4.9t^2\\\\4.9t^2 +24t -94 = 0\\\\Use \ formula \ method \ to \ solve \ for \ "t"\\\\a = 4.9 , b = 24, c = -94\\\\t = \frac{-b \ +/- \ \sqrt{b^2 -4ac} }{2a} \\\\t =  \frac{-24 \ +/- \ \sqrt{(24)^2 -4(-94 \times4.9)} }{2(4.9)} \\\\t = \frac{-24 \ +/- \ \sqrt{2418.4} }{9.8}\\\\t = \frac{-24 \ +/- \ 49.177 }{9.8}\\\\t = \frac{-24 \ +\  49.177 }{9.8} \ \ or \ \ t = \frac{-24 \ -\  49.177 }{9.8} \\\\

t = 2.57 \ s \ \ or \ \ t = -7.47 \ s

t = 2.57 s

Therefore, the time it will take the mega-ray blaster to hit the ground is 2.57 s.

3 0
3 years ago
Please help ASAP for the fill the gap sentences. The brackets are for the energy stores..... thank you in advance.
lesya692 [45]
The answer is c or h
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4 years ago
How does the force placed on an object affect how it moves?​
Alinara [238K]

<em>Answer: the force applied on an object will make the object move fast if a lot of force is applied and slow if less force is applied. and based on the direction the force is coming from the object will go to.</em>

<em />

Explanation:

force...

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What is the speed of sound in dry ear 0°?
Fofino [41]

Answer:

the speed of sound is 331.3 meters per second (1,087 feet per second) in dry air at 0 degrees Celsius

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What are the units for impulse?<br><br> m/s<br><br> Kg<br><br> Ns<br><br> Newtons
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Answer:

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Explanation:

If i were wrong please correct me.

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