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Irina-Kira [14]
3 years ago
13

Help with this one please! Please give correct answers!

Physics
1 answer:
Verdich [7]3 years ago
5 0

the answer is C because the air balloon is  going down meaning that negative


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The city council is considering discussing whether or not to put fluoride in the city's water supply. Many other towns add it al
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even if they have to pay for it.

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The horizontal component of a force p which makes a angle of 50 with the vertical is 50. find the force of p​
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65.3

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Which substance is a heterogeneous mixture?
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A heterogeneous mixture is simply any mixture that is not uniform in composition - it's a non-uniform mixture of smaller constituent parts.

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In reaching her destination, a backpacker walks with an average velocity of 1.41 m/s, due west. This average velocity results, b
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The total average velocity v=+1.41 m/s (I assume west as positive direction) is given by the total displacement, S, divided by the total time taken, t:
v= \frac{S}{t}= \frac{S_1+S_2}{t_1+t_2}
where:
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t_2, instead, can be written as \frac{S_2}{v_2}, where v_2=-0.630 m/s is the average velocity of the second part of the motion (with a negative sign, since it is due east). 

Therefore, we can rewrite the initial equation as:
v=1.41 = \frac{6300+S_2}{2530- \frac{S_2}{0.630} }
And by solving it, we find the displacement in the second part of the motion (i.e. how far did the backpacker move east):
S_2=-844 m=-0.844 km

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3 years ago
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Missing Details. Most models can't incorporate all the details of complex natural phenomena. 

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