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Tasya [4]
3 years ago
5

Why is it important not to present a biased argument as a public speaker?

Physics
1 answer:
UNO [17]3 years ago
4 0

Answer:

Explanation:

a) because it's immoral as you're trying to convince people of your views when you should be giving both sides of the story so people are able to come up with their own opinions on what you're talking about

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Distance and direction of an objects change in position from starting point
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Answer:

An object changes position if it moves relative to a reference point. The change in position is determined by the distance and direction of an object's change in position from the starting point (displacement). Direction • Direction is the line, or path along which something is moving, pointing, or aiming.

Explanation:

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A pair of stylish sneakers could be considered a<br> because it is not a necessity
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Answer:

want

Explanation:

because it is not actually needed for the existence of life at that particular time

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3 years ago
Choose the friction which opposes the relative motion between surfaces in motion a.Static friction b.Kinetic friction c.Sliding
saul85 [17]

Answer:

d. Both kinetic and sliding friction

Explanation:

Kinetic friction, commonly known as sliding friction, happens when a body with its surfaces in contact is in relative motion with another. It's the frictional force slowing it down, and finally stopping a moving body. One can describe sliding friction as the resistance any two objects create while sliding against each other. It is often documented as the force required to hold a surface moving along another surface. It is determined by two variables- one is material of the object and another is its weight.

3 0
3 years ago
Plaskett's binary system consists of two stars that revolve In a circular orbit about a center of mass midway between them. This
Sergio039 [100]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The mass is    M =1.43 *10^{32} \ kg

Explanation:

From the  question we are told that

       The mass of the stars are m_1 = m_2 =M

        The orbital speed of each star is  v_s  =  240 \ km/s  =240000 \ m/s

         The orbital period is T =  12.5 \ days =  12.5 * 2 4 * 60 *60 = 1080000\ s

The centripetal force acting on these stars is mathematically represented as

      F_c  =  \frac{Mv^2}{r}

The gravitational force acting on these stars is mathematically represented as

      F_g  =  \frac{GM^2 }{d^2}

So  F_c =  F_g

=>        \frac{mv^2}{r} =  \frac{Gm_1 * m_2 }{d^2}

=>      \frac{v^2}{r} =  \frac{GM}{(2r)^2}

=>      \frac{v^2}{r} =  \frac{GM}{4r^2}

=>    M = \frac{v^2*4r}{G}

The distance traveled by each sun in one cycle is mathematically represented as

     D  = v * T

      D  = 240000 * 1080000

      D  = 2.592*10^{11} \ m

Now this can also be represented as

      D = 2 \pi r

Therefore

                  2 \pi r= 2.592*10^{11} \ m

=>   r=  \frac{2.592*10^{11}}{2 \pi }

=>    r= 4.124 *10^{10} \ m

So  

       M = \frac{v^2*4r}{G}

=>    M = \frac{(240000)^2*4*(4.124*10^{10})}{6.67*10^{-11}}

=>    M =1.43 *10^{32} \ kg

       

     

3 0
3 years ago
In the circuit below, lamps P and Q are identical. The reading on the ammeter is 3A. The cell shown is of
Nookie1986 [14]
6V is the correct because it may
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