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3 years ago

A moterbike accelerates 8m/s. What is the final velocity of the bike after 3 s?

Physics

1 answer:

ExtremeBDS [4]3 years ago

7 0

8*3=24 so the answer is 24 mph/kph

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Define a medium and state what type of medium sound energy would travel the fastest in

Eva8 [605]

Sound travels more quickly through solids than through liquids and gases because the molecules of a solid are closer together and, therefore, can transmit the vibrations (energy) faster. Sound travels most slowly through gases because the molecules of a gas are farthest apart.

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3 years ago

Suppose I have a vector that is 7 units long and that makes an angle of +30 degrees from the positive x-axis. I want to add to t

Vinil7 [7]

Answer:

sum of these two vectors is 6.06i+3.5j-3.5i+6.06j = 2.56i+9.56j

Explanation:

We have given first vector which has length of 7 units and makes an angle of 30° with positive x-axis

So x component of the vector $=7cos30^{\circ}=7\times 0.866=6.06$

y component of the vector $=7sin30^{\circ}=7\times 0.5=3.5$

So vector will be 6.06i+3.5j

Now other vector of length of 7 units and makes an angle of 120° with positive x-axis

So x component of vector $=7cos120^{\circ}=7\times -0.5=-3.5i$

y component of the vector $=7sin120^{\circ}=7\times 0.866=6.06j$

Now sum of these two vectors is 6.06i+3.5j-3.5i+6.06j = 2.56i+9.56j

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4 years ago

What are the main causes of the convention currents in the asthenosphere?

Tju [1.3M]

I think it is c density and temperature

8 0

4 years ago

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What is longitudinal wave?

nignag [31]

Answer: The definition is a longitudinal wave is a wave consisting of a periodic disturbance or vibration that takes place in the same direction as the advance of the wave

Explanation:

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3 years ago

At what time did time begin<br><br><br> 50 points :)

USPshnik [31]

Answer:

According to the standard big bang model of cosmology, time began together with the universe in a singularity approximately 14 billion years ago.

Explanation: the big bang

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2 years ago

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