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natulia [17]
3 years ago
6

The Hubble Telescope The Hubble Telescope is a large telescope that orbits Earth. It was named after Edwin Hubble. Hubble was an

astronomer. The Hubble was launched in 1990 by NASA, the United States' space program. It uses a 94- inch mirror to collect light. Data are sent back to Earth by radio. Since it is above Earth's atmosphere, it gives us clearer pictures of space than telescopes on Earth can. It can also see farther. With this powerful tool, we've learned a lot about the universe. What Scientists Have Learned from the Hubble The Hubble has allowed us to watch stars form. It also has let us see into distant galaxies. We've been able to test our ideas. For example, before the Hubble, black holes were just a theory. We didn't know for sure that they existed. The Hubble has shown us evidence of black holes in space. The telescope has helped us find places to land data-gathering robots on Mars. We've used it to track the paths of comets. We've also been able to see volcanoes erupt on 10, one of Jupiter's moons. Telescopes that are larger than the Hubble are now being created But the Hubble is the first of its kind.
Why does being in outer space make Hubble a better telescope?
Physics
1 answer:
Marrrta [24]3 years ago
3 0

Quoting from the article itself:

"Since it is above Earth's atmosphere, it gives us clearer pictures of space than telescopes on Earth can."

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What form of energy is released into the atmosphere by the earth's surface
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Answer:

Thermal Energy (Heat)

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How much current will pass through a 12.5 ohm resistor when it is connected to ta 115 volt source of electrical potential?
Marrrta [24]

Answer:

9.2 amperes

Explanation:

Ohm's law states that the voltage V across a conductor of resistance R is given by V = R I

Here, voltage V is proportional to the current I.

For voltage, unit is volts (V)

For current, unit is amperes (A)

For resistance, unit is Ohms (Ω)

Put R = 12.5 and V = 115 in V=RI

115=12.5I\\I=\frac{115}{12.5}\\ =9.2\,\,amperes

8 0
3 years ago
The eiffel tower is a steel structure whose height increases by 19.5 cm when the temperature changes from −8 to +42 °c. what is
Readme [11.4K]
 The coefficient of expansion is 13 * 10^-6 m per meter length.per oK 
The temperature difference = 42 - - 8 = 50 oC 
delta T = (42 + 273) - (-8 + 273) = 50 oK 
delta L = L * 13* 10^6 m/oK 
oK = 50 oK delta L = 19.5 cm = 19.5 cm [1m / 100 cm] = 0.195m 
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0.195= L * 13 * 10^-6 * 50 L = 0.195 / (13*10^-6*50) L = 300 m 
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What are the magnitude and direction of electric field at the center of square?
Kobotan [32]

Answer:

hello the diagram related to this question is missing attached below is the missing diagram

Answer :

The magnitude of the electric field = 4KQ / L^2

direction = 45° east to south

Explanation:

The magnitude of the electric field = 4KQ / L^2

direction = 45° east to south

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Explanation:

<em>Hello</em><em> </em><em>there</em><em>!</em><em>!</em><em>!</em>

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