Which moment corresponds to the maximum potential energy of the system?

Physics

1 answer:

MissTica3 years ago

4 0

6489 for the founding product

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You throw a rock straight up into the air with a speed of 14.2 m/s. how long does it take the rock to reach its highest point?

slega [8]

The acceleration of gravity on or near the Earth's surface is 9.8 m/s² downward.
Is that right ? I don't hear any objection, so I'll assume that it is.

That means that during every second that gravity is the only force on an object,
the object either gains 9.8m/s of downward speed, or it loses 9.8m/s of upward
speed. (The same thing.)

If the rock starts out going up at 14.2 m/s, and loses 9.8 m/s of upward speed
every second, it runs out of upward gas in (14.2/9.8) = 1.449 seconds (rounded)

At that point, since it has no more upward speed, it can't go any higher. Right ?

(crickets . . .)

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3 years ago

In which of these biomes do nutrients cycle fastest?

nordsb [41]

Answer:

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3 years ago

Answer and I will give you brainiliest Please heeeelp

Lostsunrise [7]

Answer:

T = 4.905[N]

Explanation:

In order to solve this problem we must perform a sum of forces on the vertical axis.

∑Fy = 0

We have two forces acting only, the weight of the body down and the tension force T up, as the body does not move we can say that it is system is in static equilibrium, therefore the sum of forces is equal to zero.

$T-m*g=0\\T=0.5*9.81\\T=4.905[N]$