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RideAnS [48]
4 years ago
15

9. An astronaut of mass 90 kg walks in space outside her spaceship and receives a 30-N force from a nitrogen spurt gun. What acc

eleration does she experience?
Physics
2 answers:
Leokris [45]4 years ago
7 0

Answer:

Acceleration of the spurt gun is 0.33 m/s^2

Explanation:

Given that,

Mass of the astronaut is 90 kg

Force received from a nitrogen spurt gun is 30 N

To find :

Acceleration received to the astronaut.

Solve :

Let a is the acceleration. It can be found using the second law of motion. The formula of force is given by :

F=ma

a=\dfrac{F}{m}

a=\dfrac{30\ N}{90\ kg}

a = 0.33 m/s^2

Therefore, the acceleration experienced by the astronaut is 0.33 m/s^2

VashaNatasha [74]4 years ago
5 0
Acceleration is equal to force / mass
thus 30/90 is 0.33 m/s^2
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State Pascal''s principle. Give and example of its use
BabaBlast [244]
Well, it is also known as the transmission of fluid pressure. So, it is a principle in fluid mechanics that says that pressure exerted anywhere in a confined incompressible fluid is transmitted equally in all directions throughout the fluid such as the the pressure variations.
4 0
4 years ago
1. What happens in the process of radioactive decay? What is the half-life of a radioactive substance, and how is it used to dat
Ierofanga [76]
<span> In radioactive decay, an unstable atomic nucleus emits particles or radiation and converts to a different atomic nucleus. If the new nucleus is unstable, it will decay again, until eventually, a stable nucleus is formed. Such a sequence of nuclear decays forms a decay series.

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6 0
4 years ago
What is the magnitude of the displacement of a car with an acceleration of 3.75 m/s2 as it increases its speed from 5.20m/s to 1
NeX [460]

Answer:

20.7 m

Explanation:

using v^2=u^2+2as

s=(v^2-u^2)/2a

v=13.5

u=5.2

a=3.75

7 0
3 years ago
in the photosynthesis chemical equation does the radiant energy of the sun act as a reactant or a product
Anni [7]
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7 0
3 years ago
Question 4 (18 marks) (a) During a Physics Lab experiment, 1 st year SFY students analyzed the behavior of capacitors by connect
Nataly_w [17]

Answer:

1.) 274.5v

2.) 206.8v

Explanation:

1.) Given that In one part of the lab activities, students connected a 2.50 µF capacitor to a 746 V power source, whilst connected a second 6.80 µF capacitor to a 562 V source.

The potential difference and charge across EACH capacitor will be

V = Voe

Where Vo = initial voltage

e = natural logarithm = 2.718

For the first capacitor 2.50 µF,

V = Vo × 2.718

746 = Vo × 2.718

Vo = 746/2.718

Vo = 274.5v

To calculate the charge, use the below formula.

Q = CV

Q = 2.5 × 10^-6 × 274.5

Q = 6.86 × 10^-4 C

For the second capacitor 6.80 µF 

V = Voe

562 = Vo × 2.718

Vo = 562/2.718

Vo = 206.77v

The charge on it will be

Q = CV

Q = 6.8 × 10^-6 × 206.77

Q = 1.41 × 10^-3 C

B.) Using the formula V = Voe again

165 = Vo × 2.718

Vo = 165 /2.718

Vo = 60.71v

Q = C × 60.71

Q = C

4 0
3 years ago
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