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1 year ago

Highlight two factors which shows that heat from the sun does reach the earth's surface by convection.

Physics

1 answer:

MAXImum [283]1 year ago

3 0

radiation

when the suns radiation fall on the earth and its objects they receive heat energy and hence get heated. Thus the suns heat reaches the earth by. the process of radiation

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How do computer get input

Vitek1552 [10]

an input device is (a piece of computer hardware equipment) used to provide data and control signals to an information processing system such as acomputer or information appliance.

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2 years ago

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Name the two ends of a magnet

astra-53 [7]

The positive and the negative side
I hope this helps :)

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2 years ago

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Katrina’s recipe for orange muffins calls for 400 grams of flour. How many kilograms of flour are in the recipe?

aliina [53]

Answer:

0.4 Kilograms of flour

Explanation:

If you convert 400 grams into kilograms (400 ÷ 1,000), you would get 0.4 kilograms.

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2 years ago

Scientists expected venus to have a large amount of water. however, little detectable water has been found anywhere on venus, ei

Citrus2011 [14]

The reason that says that Venus should have had water from the sources the same as the Earth, but all of those are gone is not a correct reason why Venus is dry. Venus is the hottest planet in the solar system because of the atmosphere it has. The atmosphere of Venus contains 95% of CO2 causing it be hot and dry.

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2 years ago

What should be the speed of an artificial satellite moving on a circular orbit around the Earth at a distance of 400 km from the

Drupady [299]

Answer:

7.67001846 km/s or 17157.38529 mph

Explanation:

G = Gravitational constant = 6.67 × 10⁻¹¹ m³/kgs²

M = Mass of the Earth = 5.972 × 10²⁴ kg

m = Mass of satellite

v = Velocity of satellite

The distance between the Earth's center and the satellite is

r = 6371000+400000 = 6771000 m

As the centripetal force balances the force of gravity we have

$\frac{mv^2}{r}=\frac{GMm}{r^2}\\\Rightarrow v=\sqrt{\frac{GM}{r}}\\\Rightarrow v=\sqrt{\frac{6.67\times 10^{-11}\times 5.972\times 10^{24}}{6771000}}\\\Rightarrow v=7670.01846\ m/s=7.67001846\ km/s$

Converting to mph

$7670.01846\times \frac{3600}{1609.34}=17157.38529\ mph$

The velocity of the satellite is 7.67001846 km/s or 17157.38529 mph

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2 years ago