2 years ago

The earth’s orbit around the sun is elliptical. What does this word mean?.

1 answer:

3 0

Answer:

An elliptical orbit is the revolving of one object around another in an oval-shaped path called an ellipse. The planets in the solar system orbit the sun in elliptical orbits. Many satellites orbit the Earth in elliptical orbits as does the moon.

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We can model a pine tree in the forest as having a compact canopy at the top of a relatively bare trunk. Wind blowing on the top

solmaris [256]

Answer:

114.075 N

798.525 Nm

Explanation:

C = Drag coefficient = 0.5

ρ = Density of air = 1.2 kg/m³

A = Surface area = 9 m²

v = Velocity of wind = 6.5 m/s

r = Height of the tree = 7 m

Drag equation

$F=\frac{1}{2}\rho CAv^2\\\Rightarrow F=\frac{1}{2}\times 1.2\times 0.5\times 9\times 6.5^2\\\Rightarrow F=114.075\ N$

Magnitude of the drag force of the wind on the canopy is 114.075 N

Toque is given by the product of force and radius

$\tau=F\times r\\\Rightarrow \tau=114.075\times 7\\\Rightarrow \tau=798.525\ Nm$

Torque exerted on the tree, measured about the point where the trunk meets the ground is 798.525 Nm

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D-Driving the car faster down the road.

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A stone is thrown upward from a bridge at a speed of 10 m/s. It narrowly misses the bridge on the way back down, and hits the wa

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A 730-N person pulls a rope tied to a tree. If the person pulls the rope with a force of 120 N, what is the magnitude of the rea

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Explanation:

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What is friction and weight and what is hooks law

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Answer:

Hooke's law states that the applied force F equals a constant k times the displacement or change in length x, or F = kx. ... Hooke's law describes the elastic properties of materials only in the range in which the force and displacement are proportional.

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