What is the name of the first satellite sent into space

1 answer:

6 0

On October 4, 1957, Soviet satellite Sputnik, the world's first artificial satellite, blast into space and transmitted information via radio signals to Soviet scientists for three weeks. Sputnik II was launched in November 1957 with a a dog called Laika aboard.

I think hope you find this helpful.

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Susan’s monthly energy usage is shown in the table.

Gala2k [10]

The answer is $31.05

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Who is Janna Levin:

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Answer:

Janna levin is a cosmologist and professor at physics.

She is an american by race

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4 years ago

Photoelectrons liberated from the cathode of a photo cell by light of wavelength 136nm are stopped effectively by a reverse pote

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Answer: The answer is 20.6060606061

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Explanation:

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4 years ago

Which of the following situations correctly describes power? Bill pushed a car for 5 minutes for 20-km while doing 15 J of work.

xxMikexx [17]

I'm warning you before i answer this i'm not guaranteeing i'm going to answer this wright but I'm pretty sure its bill pushed a car for 5 minutes for 20-km while doing 15 J of work. Why I think this is the answer is because it directly tells you the most information giving you the time it took him to move the object that distance and also telling you how many joule's of force he's exerting (power).
Hope this helped :)

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4 years ago

An object with a charge of -2.9 μC and a mass of 1.0×10^−2 kg experiences an upward electric force, due to a uniform electric fi

ki77a [65]

Answer:

$E=3.38*10^{4}N/C$
The new acceleration will have a value equal to gravity (9.81m/s^2) but pointing upwards.

Explanation:

The electric Force and gravitational Force are the same:

$m*g=E*q$

$E=m*g/q=1.0*10^{-2}*9.81/(2.9*10^{-6})=3.38*10^{4}N/C$

If the Electric field is doubled, the Electric Force is doubled, so its new value is twice the weight of the object. If we add this new electric force (upwards), with the weight (downwards), we have a resulting force upwards = one time the weight. in conclusion the acceleration will have a value equal to gravity but pointing upwards.

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3 years ago