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Elis [28]
3 years ago
6

What approximate "weight" is an astronaut on the moon if his mass is 80 kg? A. 128 N B. 176 N C. 784 N D. 50 N

Physics
2 answers:
Fantom [35]3 years ago
7 0

weight = mass x acceleration due to gravity

= 80 kg x 1.6252 m/s^2 = 130 N (approximately).

The correct answer is A. 128 N

mafiozo [28]3 years ago
5 0
Your answer would be approximately 128 N. Here is how!
Acceleration on the Earth is 9.8m/sec^2... on the moon, it's 1/6 that, or about 1.6m/sec^2. 

<span>So, 80kg X 1.6m/sec^2 = 128N</span>
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iogann1982 [59]
The correct answer is:
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7 0
3 years ago
A horizontal spring with stiffness 0.4 N/m has a relaxed length of 11 cm (0.11 m). A mass of 21 grams (0.021 kg) is attached and
riadik2000 [5.3K]

Answer:

0.6983 m/s

Explanation:

k = spring constant of the spring = 0.4 N/m

L₀ = Initial length = 11 cm = 0.11 m

L = Final length = 27 cm = 0.27 m

x = stretch in the spring = L - L₀ = 0.27 - 0.11 = 0.16 m

m = mass of the mass attached = 0.021 kg

v = speed of the mass

Using conservation of energy

Kinetic energy of mass = Spring potential energy

(0.5) m v² = (0.5) k x²

m v² = k x²

(0.021) v² = (0.4) (0.16)²

v = 0.6983 m/s

5 0
3 years ago
What are 3 major areas of society affected by science
cestrela7 [59]

Answer:

Science and technology have had a major impact on society, and their impact is growing. By drastically changing our means of communication, the way we work, our housing, clothes, even the length, and quality of life itself, science has generated changes in the moral values and basic philosophies of mankind.

Explanation:

3 0
3 years ago
Why doesn’t a machine that increases force break the law of conservation of energy?
USPshnik [31]

Answer:

A machine in which work input equals work output. energy can be used to do work, work can be used to transfer energy. The change in the kinetic energy of an object is equal to the net work done on the object.

hope this helps

8 0
3 years ago
What can be broken down into tiny fundamental subatomic particles?
Nana76 [90]

The correct answer is matter. Matter is a physical substance, so it is that only option provided that can be broken down to the subatomic particle level.

4 0
3 years ago
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