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4 years ago

How big does a rock need to be to be called a boulder?

1 answer:

4 0

A rock would be defined as specks of the earths crust formed over years of pressure and hot temperatures. They are mostly filled with minerals and and other components. A boulder would be defined as a large detached mass of rock. A boulder would fall in-between the largest rock on the mountain and the smallest. So technically a boulder is formed through a giant mass of earth that stays connected as it detaches itself from whatever, a rock would just be small pieces of it.

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At the equator, the earth spins a distance of 25,992miles everyday.What speed does the Earth spin at in mph?

Otrada [13]

hi friend the earth spin at 1,000 in meters per hour

I hope it helped you

3 0

3 years ago

How much work is done by the gravitational force on the block?

KatRina [158]

Answer:

Work = Mass * Gravity * Height and is measured in Joules. Imagine you find a 2 -Kg book on the floor and lift it 0.75 meters and put it on a table. Remember, that “force” is simply a push or a pull. If you lift 100 kg of mass 1-meter, you will have done 980 Joules of work.

Explanation:

3 0

3 years ago

After a large snowstorm, you shovel 2,500 kilograms of snow off of your sidewalk in half an hour. You lift

Delvig [45]

Well, the snow has a total weight G=mg=25,000 N. The work is L=Fd=Gh=1.5*25,000=37,500 J. The power is L/t, where t=1800 seconds. P=37,500/1800=20.833 W.

3 0

3 years ago

Io, a satellite of Jupiter, is the most volcanically active moon or planet in the solar system. It has volcanoes that send plume

Mamont248 [21]

Answer:

1331.84 m/s

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity = 0

s = Displacement = 490 km

a = Acceleration

g = Acceleration due to gravity = 1.81 m/s² = a

From equation of linear motion

$v^2-u^2=2as\\\Rightarrow -u^2=2as-v^2\\\Rightarrow u=\sqrt{v^2-2as}\\\Rightarrow u=\sqrt{0^2-2\times -1.81\times 490000}\\\Rightarrow u=1331.84\ m/s$

The speed of the material must be 1331.84 m/s in order to reach the height of 490 km

3 0

4 years ago

Read 2 more answers

What can be found in every skeletal muscle?

Crazy boy [7]

Answer:

Its C

Thank me later

Now bye 

7 0

3 years ago

Read 2 more answers