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mestny [16]
4 years ago
8

A fishing boat with two people on it runs out of gas while out in a bay. The people set off an emergency flare from a height of

2 meters above the water. The flare has an initial vertical velocity og 30 meters per second. How long does it take the flare to reach its maximum height? What is that height?
Mathematics
1 answer:
elixir [45]4 years ago
7 0

Answer:

Step-by-step explanation:

time taken to reach the max height is expressed according to the projectile equation;

tmax = u/g

Given u = 30m/s

g is the acceleration due to gravity = 9.81

t = 30/9.81

t = 3.0secs

hence it will take the flare 3.06secs to reach its maximum height.

Max height = u²/2g

Max height = 30²/2(9.81)

Max height = 900/19.62

Max height = 45.87m

If the people set off an emergency flare from a height of 2 meters above the water, the total height will be 45.87 + 2 = 47.87m

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lora16 [44]

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Step-by-step explanation:

High humidity can cause the clouds to shower. When the humidity is reached to 100 percent the rain starts. For the raining system the air pressure should be low. The low air pressure often indicates the thunderstorm. Cloud are ready filled with water and when the air pressure is lowered the rain starts.

4 0
3 years ago
Simplify:<br><br> {(-8)^-4 ÷ 2^-8}^2
Aleksandr-060686 [28]

Answer:

ok so first we have to do whats in the brackets then we have to do to exponits so first

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Hope This Helps!!!

8 0
2 years ago
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1 + 4 = 5<br> 2 + 5 = 12<br> 3 + 6 = 21<br> 8 + 11 = ?
AnnZ [28]
The answer of 8+11=40
7 0
3 years ago
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In ΔQRS, the measure of ∠S=90°, the measure of ∠R=31°, and QR = 46 feet. Find the length of SQ to the nearest tenth of a foot.
ss7ja [257]

Answer:

SQ=23.7\ ft

Step-by-step explanation:

we know that

In the right triangle QRS

sin(R)=\frac{SQ}{QR} ----> by SOH (opposite side divided by the hypotenuse)

substitute the given values

sin(31^o)=\frac{SQ}{46}

solve for SQ

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4 0
3 years ago
A pair of parallel lines is cut by a transversal, as shown (see figure):
Anestetic [448]
The answer
let p' be the corresponding angle of the angle p (that is because of the prallelism and the transversal, look the image)
but p' and p are correspondant angles implies p'=p,
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so q=p' and p'=p implies   q=p
the answer is
<span>p = q</span>

 


4 0
3 years ago
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