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2 years ago

Olivia is on a swing at the playground at which point is her kinetic energy increasing and her potential energy decreasing

Physics

2 answers:

Nimfa-mama [501]2 years ago

7 0

Whenever an object is falling, its potential energy
is decreasing and its kinetic energy is increasing.

Olivia's potential energy is decreasing and her kinetic energy
is increasing as she moves toward the right side of the picture,
all the way from W, through X, to the bottom of the arc.

eduard2 years ago

7 0

Answer: W

Explanation:

Kinetic energy is due to motion of a body.

K.E. = 0.5 m v²

Potential energy is due to position of the body. In this case it is determined by the height.

P.E. = m g h

At the highest point potential energy is maximum. As the Olivia swings down, potential energy converts to kinetic energy. Thus, at point W, potential energy is decreasing and kinetic energy is increasing. Kinetic energy would be maximum at lowest point.

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chubhunter [2.5K]

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2 years ago

A satellite that goes around the earth once every 24 hours (86,400 s) is called a geosynchronous satellite. If a geosynchronous

Olegator [25]

Answer:

42244138.951 m

Explanation:

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$m\frac{v^2}{r}=\frac{GMm}{r^2}\\\Rightarrow \frac{\left(\frac{2\pi \times r}{24\times 3600}\right)^2}{r}=\frac{6.667\times 10^{-11}\times 5.98\times 10^{24}}{r^2}\\\Rightarrow \left(\frac{2\pi \times r}{24\times 3600}\right)^2=6.667\times 10^{-11}\times 5.98\times 10^{24}\\\Rightarrow r^3=\frac{6.667\times 10^{-11}\times 5.98\times 10^{24}\times (24\times 3600)^2}{(2\pi)^2}\\\Rightarrow r=\left(\frac{6.667\times 10^{-11}\times 5.98\times 10^{24}\times (24\times 3600)^2}{(2\pi)^2}\right)^{\frac{1}{3}}\\\Rightarrow r=42244138.951\ m$

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6 0

2 years ago

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lbvjy [14]

Answer:

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2 years ago

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Len [333]

Answer:

scalar quantity

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