2 years ago

Which term describes what a british thermal unit measures?.

Physics

1 answer:

Yakvenalex [24]2 years ago

8 0

Answer:

it is a measure of the heat content of fuels or energy sources

Explanation:

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6. A car drives 750 miles in 10 hours. Calculate the speed of the truck<br><br><br> .

Dmitriy789 [7]

Answer:

75 miles an hour

I hope this is correct and helps

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3 years ago

When he sees teachers encouraging other children to wait in the cafeteria until the first bell rings, Ian follows them. What typ

Ostrovityanka [42]

This is observational learning because Ian observed that his peers waited in the cafeteria until the first bell rings. He decided to imitate them.

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3 years ago

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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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3 years ago

The relationship that exists between gravity and distance and mass respectively.

ruslelena [56]

Answer:

D...............................

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3 years ago

Someone please helpppp!

Vlad1618 [11]

I believe it’s A, i could be wrong tho 3

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