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3 years ago

Which model is most similar to that of Aristarchus?

Physics

2 answers:

alina1380 [7]3 years ago

6 0

Answer:

A. First one with Sun at the center.

Explanation:

Aristarchus was a Greek scientist who proposed the theory that its not Earth which is fixed, its the Sun that has a fixed position and is placed at center where are all other planets are located at some distance from it and revolve around it.

This theory is referred as "Heliocentric". His theories were even attributed by Nicolaus Copernicus and was even know as Copernicus heliocentrism.

Ray Of Light [21]3 years ago

4 0

Answer:The first one , option a

Explanation:

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A drop

exis [7]

Answer:

$27.5\ m$

Explanation:

As we know that volume of cylinder is

$v=\pi r^{2} *h$

Where v=volume , h= height or thickness and r= radius

Here,

$v= 10 m ,\ diameter= 10, \ r=\frac{diameter}{2} \ r=\frac{10}{2}\\ r=5$

Putting these values in the previous equation , we get

$10\ = \frac{22}{7} *5 *5*h\\ 14\ =\ 110*h\\h=\frac{110}{14} \\h=\frac{55}{2} \\\\h=27.5\ m$

Therefore thickness is 27.5 m

7 0

3 years ago

Calculate the work done by a force of 30 N in lifting a load of 2 kg to a height of 10 m (g = 10 m/s2)

Mars2501 [29]

Answer:

300 J

Explanation:

Given :

Applied force = 30 N
Mass = 2 kg
Height = 10 m
g = 10 m/s²

Work done by the force :

Work done = Force x Displacement
Work done = mg x h
Work done = 30 N x 10 m
Work done = 300 J

Note :

What you have calculated is the work done by gravitational force on the object (that too, incorrectly)
But in the end, it asks for work done by the force of 30N
Hence, the given answer ~

3 0

2 years ago

A car is travelling with a velocity 90 km/hr and other with 72 km/hr in opposite direction, find the relative velocity between t

satela [25.4K]

Answer:

590km pls brainlist

Explanation:

jjjuue

7 0

2 years ago

Can someone plz help me DUE TOMORROW

aksik [14]

Hey the answer to the question is
m = 0.40

3 0

3 years ago

Help!?!?!??!!?!?!?!?!?!?!

Marysya12 [62]

D only kinetic energt because if it had heluim or any thing jt will float up

4 0

3 years ago