3 years ago

A,B,C or D which of the following can be concluded regarding the movement represented in the graph?

Physics

1 answer:

Lerok [7]3 years ago

4 0

Answer:

C. It remained at a constant speed

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The work-energy theorem states that the work done on an object is equal to a change in which quantity?

Fynjy0 [20]

The work-energy theorem states that the net work done by the forces on an object equals the change in its kinetic energy.

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2 years ago

Elena pulls a sled with her younger brother and sister across the snow covered yard. Then she pulls the same sled across a smoot

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The answer is B.
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3 years ago

3. The shrillness of sound is known as_________

swat32

Answer:

pitched sound

Explanation:

The shrillness of sound is known as Pitched Sound

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3 years ago

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If a ball with an original velocity of 0 is dropped from a tall structure and takes 7 Seconds to hit the ground what velocity do

MrMuchimi

Gravity adds 9.8 m/s to the downward speed of a falling object every second. (On Earth.)

In 7 seconds, gravity adds (7 x 9.8 m/s) = <em>68.6 m/s</em> to the downward speed of a falling object.

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3 years ago

A particular electric car is supplied with 300 kJ of chemical energy by the battery. Of this, a total of 70.5 kJ of energy is wa

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Supplied energy=300kJ

Wasted energy=70.5J

Used energy:-

$\\ \sf\longmapsto 300-70.5=229.5kJ$

We know

$\boxed{\sf Efficiency=\dfrac{Used\:Energy}{Supplied\:Energy}\times 100}$

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$\\ \sf\longmapsto Efficiency=\dfrac{229.5}{3}$

$\\ \sf\longmapsto Efficiency=76.5\%$

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2 years ago