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Leviafan [203]
2 years ago
13

Why are space probes and other unmanned crafts more commonly used for space investigations than space crafts with crews of astro

nauts?
Select one:

Unmanned crafts don't have to support human life

Manned missions are risky to human life

All of these are correct

Space probes are less expensive to launch
Chemistry
1 answer:
Crank2 years ago
4 0
All of these are correct.
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How many ml of co2 would be produced at 745 torr and 28°C
Marizza181 [45]

Answer:

Se aplica la leyes d ellos gases ideales para esto se convierten las unidades de Presión en atmósferas y Temperatura a Kelvin y si no se tiene el volumen el volumen equivale a 22.4Litros

Explanation:

3 0
3 years ago
What is the potential energy of an 18 kg object with a height of 15 m?
kicyunya [14]

Explanation:

Potential Energy :

PE = m x g x h

PE= 18 x 10 x 15

PE= 2700Joule...

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2 years ago
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Convert 78.9 kJ into calories Can you also explain how pls? ty
Naddik [55]

Explanation:

1 kJ = 238.85 cal and

1 cal = 0.004187 kJ

so it will be 78.9×238.85 = <em><u>1</u></em><em><u>8</u></em><em><u>,</u></em><em><u>8</u></em><em><u>4</u></em><em><u>4</u></em><em> </em>calories

78.9 Kilojoules (kJ) = 18,844 Calories (IT) (cal)

3 0
3 years ago
Research shows that the combination of __________ and __________ can reduce the risk of death in a collision by up to 80%
r-ruslan [8.4K]
The combination of seatbelts and airbags can reduce the risk of death in a collision by up to 80%.

The seatbelts help to keep the person in one position and prevent impact with the vehicle as the vehicle comes to a sudden stop. Moreover, the airbag increases the time of collision to reduce the impact experienced by the person. An increased time of collision greatly reduces the damage that is done to the body.
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3 years ago
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Answer:

4

Explanation:

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