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3 years ago

8

What is fire department of the day

2 answers:

fredd [130]3 years ago

6 0

Answer:

International Firefighters' Day is observed on May 4. It was instituted after a proposal was emailed out across the world on January 4, 1999 due to the deaths of five firefighters in tragic circumstances in a bushfire in Australia.

Andrej [43]3 years ago

5 0

Fire Service Day
International Firefighters' Day (IFFD) is observed on May 4. It was instituted after a proposal was emailed out across the world on January 4, 1999 due to the deaths of five firefighters in tragic circumstances in a bushfire in Australia.

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If a force of 32000N exerted pressure of 160N/m² , find the area on which the force acts.

Alex17521 [72]

Answer: 200m^2

Explanation:

160N=32000N/x

x*160N=32000

x=200m^2

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A helicopter flies 168 miles against the wind in 2 hours; with the wind, it can fly 252 miles in the same amount of time. find t

posledela

Let $v_h$ be the speed of the helicopter in still air. Let $v_w$ be the speed of the wind. Then, from the given information,

$(v_h-v_w)2=168\\ (v_h+v_w)2=252\\$

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3 years ago

Read 2 more answers

Xavier throws a tennis ball to his friend Olaf at a 20° angle relative to the ground with an initial velocity of 18 m/s. The ten

Svetllana [295]

Ball is thrown at an angle of 20 degree with velocity 18 m/s

so first we will find the two components of the velocity

$v_x = 18 cos20$

$v_x = 16.91 m/s$

similarly for other component

$v_y = 18 sin20$

$v_y = 6.16 m/s$

now the ball will cover horizontal distance of 30 m till it reach to other player

so here we can use the formula of time

$x = v_x * t$

$30 = 16.91 * t$

$t = \frac{30}{16.91}$

$t = 1.77 s$

so it will take 1.77 s to reach the other player

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3 years ago