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77julia77 [94]
3 years ago
15

The steps in the scientific process must be followed in order. True False

Physics
2 answers:
White raven [17]3 years ago
7 0
True I learned this in 5th grade
olya-2409 [2.1K]3 years ago
5 0

Answer: True

Hope I helped :)

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An hydrogen molecule consists of two hydrogen atoms whose total mass is 3.3×10−27 kg and whose moment of inertia about an axis p
dlinn [17]

Answer:

6.9631\times 10^{-11}\ m

Explanation:

I = Moment of inertia = 4\times 10^{-48}\ kg m^2

m = Mass of two atoms = 2m = 3.3\times 10^{-27}\ kg

r  = distance between axis and rotation mass

Moment of inertia of the system is given by

I=mr^2\\\Rightarrow I=2mr^2\\\Rightarrow 4\times 10^{-48}=3.3\times 10^{-27}\times r^2\\\Rightarrow r=\sqrt{\frac{4\times 10^{-48}}{3.3\times 10^{-27}}}\\\Rightarrow r=3.48155\times 10^{-11}\ m

The distance between the atoms will be two times the distance between axis and rotation mass.

d=2r\\\Rightarrow d=2\times 3.48155\times 10^{-11}\\\Rightarrow d=6.9631\times 10^{-11}\ m

Therefore, the distance between the two atoms is 6.9631\times 10^{-11}\ m

3 0
3 years ago
How can Newton's laws be applied to protect a smartphone screen during a collision?
Sonja [21]

smartphones break due to forces acting on the material.

force causes material to deform.

material is often brittle and cracks due to a limit on hardness / electricity in screens.

newton's 2nd law states

force = DV / DT

to help phones we must slow down change in momentum to reduce the force

thus we must use some form of damping in the form of a case .

the case is typically able to deform and rubber is elastic converting the kinetic energy to heat as it deforms instead of transferring it through the screen.

therefore the change in velocity occurs over a longer time. therefore the impulse decreases

7 0
3 years ago
if a person with a mass of 70kg is standing on scale in an elevator when the cable snaps, what will the reading on the scale be
dybincka [34]

Answer:

The reading will be the same.

Explanation:

Mass does not depend upon anything and it remains the same anywhere. What changes is the weight of the body because it depends upon gravity and is different at different places.

Giving me the brainest will be helpful.

3 0
2 years ago
5. True or False: Velocity is the magnitude of speed​
sergey [27]
True the magnitude is the velocity of speed
7 0
3 years ago
Read 2 more answers
What force can stop a 1400kg truck accelerating at 7.5m/s2? URGENT PLZZ
Archy [21]

Answer:

10500 N

Explanation:

F = m*a=1400*7.5N=10500N

6 0
3 years ago
Read 2 more answers
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