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Musya8 [376]
3 years ago
9

What is the speed of a 48-kilogram dog running acrossa lawn with 216 joules of kinetic energy?​

Physics
1 answer:
pishuonlain [190]3 years ago
8 0

Answer:

3m/s

Explanation:

K.E= (1/2)mv^2

216j= (1/2)48kg • v^2

216J=24kg•v^2

v^2 = (216J)/(24kg)

v^2= 9m^2/s^2

/sqrt{v^2} = /sqrt{9m^2/s^2}

V =3m/s

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Answer:

True. Diffusion and osmosis are forms of passive transport.

Explanation:

In diffusion, particles move from an area of higher concentration to one of lower concentration until equilibrium is reached.

In osmosis, a semipermeable membrane is present, so only the solvent molecules are free to move to equalize concentration.

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3 years ago
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When light propagates from a material with a given index of refraction into a material with a smaller index of refraction, the s
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This device combines multiple circuits at one end of a connection into a single complex circuit on a single wire. The signal is
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Multiplexer

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3 years ago
A 48.0-kg skater is standing at rest in front of a wall. By pushing against the wall she propels herself backward with a velocit
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Answer:

F = 47.6 N

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       F = \frac{\Delta p}{\Delta t}

  • So, in order to find the average force exerted by the skater on the wall, we can find the change in momentum due to the force exerted by the wall (which is equal and opposite to the one exerted by the skater), and  divide it by the time interval , as follows:

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When you rub a plastic rod with fur, the plastic rod becomes negatively charged and the fur becomes positively charged. As a con
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