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iris [78.8K]
3 years ago
8

Help me please. I’ll select brainliest!

Physics
2 answers:
pishuonlain [190]3 years ago
8 0

Answer:

90 degrees

Explanation:

the answer is 90 because angle a has a square on the angle which means it is 90 degrees

fomenos3 years ago
6 0

Answer:

90°

Explanation:

It is so because

the square shaped angle means 90°

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The photograph shows matter going through a physical change. Which characteristic of the matter changes?
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Possibly shape.

Explanation:

Because it is ripped in half. As you guys and the questioner can see that there is a wiggly strip down the middle. That also cause of a shape change.

I really hope my answer is right ^_^  

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3 years ago
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water is flowing at 4.0m/s in a circular path. if the diameter of the decreases to 1/2 its former value, what is the velocity of
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2 years ago
The ends of a magnet where the force is strongest are magnetic
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Yes

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Newton's Third Law of Motion relates to action and reaction. Which of the following scenarios accurately names the correct actio
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(B)

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While some of the other scenarios make sense to match with Newton's Third Law of Motion, their reaction and actions are in the wrong order.

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3 years ago
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in baseball, a pitcher can accelerate 0.15kg ball from rest to 98 mi/hr in a distance of 1.7m. (a) What is the average force exe
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F=84.68 N

Required force increases

Explanation:

By the equation

v^{2}=u^{2} +2as\\ 98^{2}*1609.344^{2}/(60*60)^{2}=0+2*a*1.7\\a = 98^{2}*1609.344^{2}/((60*60)^{2}*2*1.7)\\a = 564.50m/s^{2} \\

By newton's second law :

F=ma\\F=0.15*564.50  \\F=84.68 N

When the mass increased the force increases as the equation.

F=ma

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3 years ago
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