3 years ago

Provide an explanation tok please 80 points!!

Physics

1 answer:

nalin [4]3 years ago

8 0

Answer:

4th answer

Explanation:

have a good rest of ur day

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The difference between experimental technique and procedure

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A procedure is all the steps used to do an experiment in order.
<span>the experiment is when you test your hypothesis and is designed to answer your question. </span>
<span>the procedure is all the steps of the experiment.</span>

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The law of reflection states that the angle of reflection is equal to the angle of

Natali [406]

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A 1650 kg car accelerates at a rate of 4.0 m/s. How much force is the car's engine producing?

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3 years ago

A ball is tossed vertically upwards with a speed of 5.0 m s–1. After how many seconds will the ball return to its initial positi

mezya [45]

Answer:

1.02 seconds

Explanation:

Initial velocity = u = 5 m/s

t = Time taken

s = Displacement travelled = 0

a = Acceleration due to gravity = -9.81 m/s² (negative sign due to direction)

Equation of motion

$s=ut+\frac{1}{2}at^2\\\Rightarrow 0=5t+\frac{1}{2}-9.81\times t^2\\\Rightarrow 0=5t-4.905t^2\\\Rightarrow 0=t(5-4.905t)\\\Rightarro 0=5-4.905t\\\Rightarrow t=\frac{-5}{-4.905}=1.02\ seconds$

So, time taken to return to its initial position is 1.02 seconds

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Is the following research description experimental, descriptive, or applied?

Bingel [31]

Answer:

It is experimental. She will testing or investigating on children. So yeah, it is experimental

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