Physics, 04.10.2019 22:20 natalieoppelt

What is the average acceleration of the object represented in the graph above over the 10 seconds? i know the answer isn’t c

What is the average acceleration of the object represented in the graph above over the 10 seconds?

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Answer from: falabit

The average acceleration of the object represented in the graph over the 10 seconds is 2 m/s²

From the question,

We are to determine the average acceleration of the object represented in the graph

Average acceleration is the rate at which the velocity changes.

Average acceleration can be calculated using the formula

$Average\ acceleration = \frac{Change\ in\ velocity}{Change\ in\ time}$

$Average\ acceleration=\frac{v_{f}-v_{0} }{t_{f}-t_{0} }$

Where $v_{f}$ is the final velocity

$v_{0}$ is the initial velocity

$t_{f}$ is the final time

and $t_{0}$ is the initial time

From the graph

$v_{f} = 20 \ m/s$

$v_{0} = 0 \ m/s$

$t_{f}= 10 \ secs$

$t_{0}= 0 \ secs$

Putting the parameters into the formula, we get

$Average\ acceleration = \frac{20-0}{10-0}$

$Average\ acceleration = \frac{20}{10}$

$Average\ acceleration = 2 \ m/s^{2}$

Hence, the average acceleration of the object represented in the graph over the 10 seconds is 2 m/s²

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Answer from: jacamron

It's always a good idea to start with the definition of the thing you're trying to find.

This problem is just trying to find out whether you KNOW the definition of acceleration. You may know it, but you haven't used it yet.

Average acceleration = (change in velocity) divided by (total time).

Change in velocity = (end value) minus (start value)

Change in velocity = (20m/s) - 0

Change in velocity = 20 m/s

Time = 10 s

Average acceleration = (20m/s)/(10s)

Average acceleration = 2 m/s^2

Answer from: Quest

You will hear a hissing sound because of the carbon dioxide escaping the can or bottle

Answer from: Quest

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

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