3 years ago

Please Help!

Physics

2 answers:

loris [4]3 years ago

6 0

There is a net force of 15N in The direction of Levi

vlada-n [284]3 years ago

5 0

an unbalanced force moving everyone in Daniel and Maria's direction

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What percentage of the takeoff velocity did the plane gain when it reached the midpoint of the runway? a plane accelerates from

ElenaW [278]

When is at the end of the runway the velocity of the plane is given by the equation $vf^{2}=0+2*a*s$ where s=1800 m is the runway length. Thus
$vf^{2}=2*5*1800=18000 (m/s)^{2}$
$vf =134.164 (m/s)$

At half runway the velocity of the plane is
$v^{2}=2*5* \frac{1800}{2}=9000 ( \frac{m}{s} )^{2}
$
$v= \sqrt{9000}=94.87 ( \frac{m}{s})$

Therefore at midpoint of runway the percentage of takeoff velocity is
‰ $P= \frac{v}{vf}= \frac{94.87}{134.164}=0.707$

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3 years ago

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Serga [27]

Answer:

an atom

Explanation: atom then matter

8 0

4 years ago

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hich muscle fibers are best suited for activities that involve lifting large, heavy objects for a short period of time? cardiac

Temka [501]

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Explanation:

6 0

4 years ago

Two conditions must<br> be met for work to be done, what are they?

Margarita [4]

The two conditions are:

1) Application of-force on the body.

2) Displacement of the body in the direction of force.

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6 0

3 years ago

Raul dug a hole in his yard to repair a water pipe. It took him 2 seconds to apply a force of 50 Newtons to push the shovel 0.25

Sergeu [11.5K]

Answer:

Option B. 6.25 J/S

Explanation:

Data obtained from the question include:

t (time) = 2secs

F (force) = 50N

d (distance) = 0.25m

P (power) =?

The power can be obtained by using the formula P = workdone/time.

P = workdone / time

P = (50 x 0.25)/ 2

P = 6.25J/s

3 0

3 years ago