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nikdorinn [45]
3 years ago
10

HELP MEEEEE HURRRYYYY EASYY

Physics
1 answer:
alisha [4.7K]3 years ago
7 0

Answer:

C

Explanation:

thats what i think it depends on the amount of force someone dropped the ball with.

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A golf ball starts with a speed of 2 m/s and slows at a constant rate of 0.5 m/s2, what is its velocity after 2 s?​
jeka57 [31]

Answer:

3m/s

Explanation:

Given parameters:

Initial speed  = 2m/s

Acceleration  = 0.5m/s²

Time  = 2s

Unknown:

Final speed  = ?

Solution:

To solve this problem, we apply the right motion equation;

     V  = U + at

V is the final speed

U is the initial speed

a is the acceleration

t is the time

      V = 2  + (2 x 0.5)

      V = 2 + 1

      V = 3m/s

8 0
3 years ago
9. The fastest moving particle is what
erik [133]

Answer:

I believe the answer is Atom

4 0
4 years ago
Microbial food infections are usually not seen until ______ after eating contaminated food.
Vedmedyk [2.9K]

Answer:

2 to 4 hours

Explanation:

Given that,

Microbial food infections

We know that,

Food infection :

When we eat old food, uncooked, fermented food, more junk food and contaminated food then 2 to 4 hours after eating we started vomiting, headache then we affected by food infections.

So, we can say that microbial food infections are usually not seen until 2 to 4 hours after eating contaminated food.

6 0
3 years ago
What is the purpose of a circuit breaker?
sashaice [31]
It’s designed to protect an electrical circuit from damage caused by overcurrent, usually resulting from an overload or short circuit. Its basic function is to interrupt current flow after a fault is detected.

That’s really just the basic purpose.
Happy to help!
~Brooke❤️
8 0
4 years ago
A 1090 kg car has four 12.7 kg wheels. When the car is moving, what fraction of the total kinetic energy of the car is due to ro
max2010maxim [7]

Answer:

\frac{KE_{Rotational}}{KE_{Total}} = 0.018

Explanation:

To develop this exercise we proceed to use the kinetic energy equations,

In the end we replace

KE_{Total}=KE_{Translational}+KE_{Rotational}

KE_{Total}=\frac{1}{2}m_{car}+4*\frac{1}{2}*I*(\frac{v}{r})^2

Here

I=\frac{1}{2}m_{wheels}*r^2 meaning the 4 wheels,

So replacing

KE_{Rotational}=4\frac{1}{2}*(\frac{1}{2}m_{wheels}*r^2)*(\frac{v}{r})^2=m*v^2

So,

\frac{KE_{Rotational}}{KE_{Total}} = \frac{m_{wheels}*v^2}{\frac{1}{2}m_{car}*v^2+m_{wheels}*v^2}

\frac{KE_{Rotational}}{KE_{Total}} = \frac{m_{wheels}}{\frac{1}{2}m_{car}+m_{wheels}}

\frac{KE_{Rotational}}{KE_{Total}} =  \frac{10}{545+10}

\frac{KE_{Rotational}}{KE_{Total}} = 0.018

3 0
3 years ago
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