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Effectus [21]
4 years ago
5

The wind vane should be located well above the ground. Why?

Physics
2 answers:
fiasKO [112]4 years ago
5 0

Answer:

It needs to be high off the ground and away from trees or anything else that would be blocking it to get an accurate reading of the wind

andreev551 [17]4 years ago
4 0

Answer:

For accurate readings, a wind vane should be located high above the ground and away from buildings, trees, or any objects that could interfere with the true wind direction. ... This movement of air is what makes the wind blow.

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A rocket is launched from rest and moves in a straight line at 30.0 degrees above the horizontal with an acceleration of 35.0 m/
klemol [59]

Answer:

t = 123.59s

Explanation:

For the launch pad section:

Vf = Vo + a*t  where Vo=0.

Vf = 35*25 = 875m/s

The distance traveled during the launch:

d = Vo*t+\frac{a*t^2}{2} = 0+\frac{35*25^2}{2} = 10937.5m

Now the projectile motion, we know that its initial speed is the speed calculated previously and the initial height is the y-component of the previously calculated distance.

\Delta Y = Vo*sin(30)*t - \frac{g*t^2}{2}

-d*sin(30) = Vo*sin(30)*t - \frac{g*t^2}{2}  where d= 10937.5m; Vo=875m/s.

Solving for t:

t1 = -11.093s   t2 = 98.59s

So, the total time of flight will be:

t_{total} = t_{launch}+t_{projectile}=25+98.59 = 123.59s

6 0
3 years ago
What are the characteristics of S waves?
Reptile [31]
I think the answer is D
6 0
4 years ago
HELP DUE 3 MINUTESSSSD
Delvig [45]

Answer:

Break down small pebbles and sediments, like sand

Break down large rocks like mountains

Explanation:

6 0
3 years ago
A 3.0 kg ball is lifted two meters upward in two seconds, and a 6.0 kg ball is lifted one meter upward in one second? Which requ
Sav [38]

Answer:

1. They both uses same energy

2. The 6 kg ball requires more power than 3kg ball

Explanation:

Sample 1

m = 3kg

g= 10m/s^2

h = 2m

t = 2secs

W = mgh = 3 x 10 x 2 = 60J

P= w/t = 60/2 = 30watts

Sample 2

m = 6kg

g= 10m/s^2

h = 1m

t = 1sec

W = mgh = 6 x 10 x 1 = 60J

P= w/t = 60/1 = 60watts

They both uses same energy but different power. The 6 kg ball requires more power than 3kg ball

3 0
4 years ago
Jake has four pairs of horseshoe magnets in different sizes. He experiments by moving each pair farther and farther apart. Which
Levart [38]

Answer:

a)  the largest pair of magnets

this is the answer

Explanation:

7 0
4 years ago
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