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o-na [289]
3 years ago
8

Newton has Three Laws of Motion. Seat belts are used to help keep the passengers remaining in their seats during an accident. If

the seat belts are not present the passengers would continue to move forward when the car stops. Which of Newtons three laws does this demonstrates?
1st Law
2nd Law
3rd Law


We use simple machines in our daily life. If I use a knife to cut my sandwich for lunch, _____________________.

I've used less force and done less work.
I've used more force and done more work.
I've used less force and done the same amount of work.
Physics
1 answer:
kherson [118]3 years ago
5 0
Newton’s first law of inertia
Less force, same work
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Complete Question

The complete question is  shown on the first uploaded image  

 

Answer:

The electric field at that point is  E = 7500 \ N/C

Explanation:

From the question we are told that  

       The  radius of the inner circle is r_i  =  0.80  \ m

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        The  position we are considering is  x =  0.60 m  from the center

Generally  the  electric field  at the distance x =  0.60 m  from the center  is mathematically represented as

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substituting values  

                  E =  \frac{k *  q_c   }{x^2}

where  k is  the coulomb constant with value k = 9*10^{9}  \ kg\cdot m^3\cdot s^{-4} \cdot A^{-2}.

     substituting values

                  E =  \frac{9*10^9  *  300 *10^{-9}}{0.6^2}

                 E = 7500 \ N/C

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