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3 years ago

5. If Joe spend 250 W power to lift a box weighing 25.5 kg in 3.0 s, how high did he lift the box?

Physics

1 answer:

Serjik [45]3 years ago

5 0

Answer:

Explanation:

p=250w

m=25.5

t=3.0s

D=x

F=mxa F= 25.5kg x 9.8m/s^2 =250N

D= 250wx3.0s/250w

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Explanation:

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A 1500kg car is at rest before it accelerates when the light turns green. If it covers 45.0 meters in 15.0 seconds, what is the

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Answer:

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Explanation:

Given parameters:

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From Newton's second law:

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3 years ago

A virtual image formed by a concave mirror is always enlarged. O True O False

Dmitry [639]

Answer:

True

Explanation:

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3 years ago

An airplane is flying in a horizontal circle at a speed of 480 km/h (). If its wings are tilted at angle =40° to the horizontal

german

Answer:

$R = 2162 m$

Explanation:

When wings of the airplane makes an angle of 40 degree with the horizontal so here we can say that force due to air is having two components

$F_y = mg$

$F_x = \frac{mv^2}{R}$

now we know that

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$F_x = F sin40$

also we know that

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$tan 40 = \frac{v^2}{Rg}$

$R = \frac{v^2}{g tan40}$

$R = \frac{133.3^2}{9.8 tan40}$

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3 years ago