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4 years ago

Which situation is an an example of competition that could be found in the grassland

Physics

2 answers:

Kruka [31]4 years ago

8 0

Two lion populations utilize the same gazelle population as their main food source.

astraxan [27]4 years ago

4 0

A good answer is a giraffe and a tree

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An apple dropped from the branch of a tree hits the ground in 0.5 s. If the acceleration of the apple during its motion is 10 ms

Ipatiy [6.2K]

Given that,

Time = 0.5 s

Acceleration = 10 m/s²

(I). We need to calculate the speed of apple

Using equation of motion

$v=u+at$

Where, v = speed

u = initial speed

a = acceleration

t = time

Put the value into the formula

$v=0+10\times0.5$

$v=5\ m/s$

(III). We need to calculate the height of the branch of the tree from the ground

Using equation of motion

$s=ut+\dfrac{1}{2}gt^2$

Put the value into the formula

$s=0+\dfrac{1}{2}\times10\times(0.5)^2$

$s=1.25\ m$

(II). We need to calculate the average velocity during 0.5 sec

Using formula of average velocity

$v_{avg}=\dfrac{\Delta x}{\Delta t}$

$v_{avg}=\dfrac{x_{f}-x_{i}}{t_{f}-t_{0}}$

Where, $x_{f}$ = final position

$x_{i}$ = initial position

Put the value into the formula

$v_{avg}=\dfrac{1.25+0}{0.5}$

$v_{avg}=2.5\ m/s$

Hence, (I). The speed of apple is 5 m/s.

(II). The average velocity during 0.5 sec is 2.5 m/s

(III). The height of the branch of the tree from the ground is 1.25 m.

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Help a nga out with his physic hw

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Rarefactions are where you see the wave further apart. Where it's closer together, it's called a compression.

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IceJOKER [234]

To determine which object has the greatest acceleration, you would use the formula:

acceleration = (Final Velocity - Initial Velocity) / Time

Just plug-in values for what you have and see which one has the greatest acceleration. If you're given velocity-time graphs, then the one with the steepest slope would have the greatest acceleration.

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yaroslaw [1]

Recessed is the correct answer

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Which takes more energy, going from 0 to 30, or from 30 to 60?

AfilCa [17]

0 to 30 takes more energy

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