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Basile [38]
3 years ago
13

Five scientist who travelled to space​

Physics
1 answer:
Masja [62]3 years ago
6 0

Answer:

The Most Famous Astronomers of All Time. Karl Tate, SPACE.com. ...

Claudius Ptolemy. Bartolomeu Velho, Public Domain. ...

Nicolaus Copernicus. Public Domain. ...

Johannes Kepler. NASA Goddard Space Flight Center Sun-Earth Day. ...

Galileo Galilei. NASA

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Explanation:

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2 years ago
As the space shuttle orbits the Earth, the shuttle and the astronauts
morpeh [17]
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7 0
2 years ago
Calculate the work required to lift a 2000 kg vehicle on a lift, 2.0 m at constant speed, assuming friction averages 500 N..a. 3
hoa [83]

Answer:

c. 40200 J

Explanation:

Assume gravitational constant g = 9.8m/s2. The weight of the 2000kg vehicle is

W = mg = 2000*9.8 = 19600 N

In addition to the friction averaging at 500N, the total force is

F = 20000 + 500 = 20100 N

The work required to generate this force over a distance of 2m would be

F*s = 20500 * 2 = 40200 J

So c.40200 J is the correct answer

7 0
3 years ago
What is the resistance of a 15 ampere current with 8 volts of potential difference?
Alex Ar [27]

Answer:

Resistance in circuit = 0.53 ohm (Approx.)

Explanation:

Given:

Flow of current in circuit = 15 amp

Potential difference = 8 Volts

Find:

Resistance in circuit

Computation:

In an electrical system, resistance is a stopper of a material to electric current.

Resistance in circuit = Potential difference / Flow of current in circuit

Resistance in circuit = 8 / 15

Resistance in circuit = 0.53 ohm (Approx.)

8 0
2 years ago
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