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2 years ago

The movement of a body between any two points in any direction is called

Physics

2 answers:

Zanzabum2 years ago

6 0

Answer:

I think is called Motion

but am not sure

Vesnalui [34]2 years ago

4 0

Answer:

Maybe its displacement, I'm not sure?

Explanation:

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A kangaroo can jump over an object 2.46 m high. (a) Calculate its vertical speed (in m/s) when it leaves the ground.

Elenna [48]

Answer:

a) 6.95 m/s

b) 1.42 seconds

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration due to gravity = 9.81 m/s²

$v^2-u^2=2as\\\Rightarrow -u^2=2as-v^2\\\Rightarrow -u^2=2\times -9.81\times 2.46-0^2\\\Rightarrow u=\sqrt{2\times 9.81\times 2.46}\\\Rightarrow u=6.95\ m/s$

a) The vertical speed when it leaves the ground. is 6.95 m/s

$v=u+at\\\Rightarrow t=\frac{v-u}{a}\\\Rightarrow t=\frac{0-6.95}{-9.81}\\\Rightarrow t=0.71\ s$

Time taken to reach the maximum height is 0.71 seconds

$s=ut+\frac{1}{2}at^2\\\Rightarrow 2.46=0t+\frac{1}{2}\times 9.81\times t^2\\\Rightarrow t=\sqrt{\frac{2.46\times 2}{9.81}}\\\Rightarrow t=0.71\ s$

Time taken to reach the ground from the maximum height is 0.71 seconds

b) Time it stayed in the air is 0.71+0.71 = 1.42 seconds

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2 years ago

An atom with more or less neutrons than expected is a what ?

salantis [7]

Answer:

Isotope it will have a different number of neutrons than normal

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2 years ago

How big the sun is compared to the planets

Ksivusya [100]

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2 years ago

What's going to happen in 3 weeks ?

Nana76 [90]

Answer:

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Explanation:

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2 years ago

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lora16 [44]