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Anton [14]
4 years ago
11

Explain why an aton is neutral

Physics
1 answer:
kodGreya [7K]4 years ago
4 0

Atoms ere electrically neutral because they have equal number of protons and electrons.  If an atom lose or gain one or more electrons it becomes an ion.

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Which airplane has more potential energy, a boeing 787 dreamliner having a mass of 2,450kg at 11,500 m above Earth, or a boeing
Readme [11.4K]

Explanation:

For 787 dreamliner airplane,

Mass, m_1=2450\ kg

Height, h_1=11500\ m

Potential energy of 787 dreamliner airplane is given by :

E_1=m_1gh_1\\\\E_1=2450\times 9.8\times 11500\\\\E_1=2.76\times 10^8\ J

For a boeing 747,

Mass, m_2=3150\ kg

Height, h_2=9000 \ m

:

Potential energy of a boeing 747 airplane is given by

E_2=m_2gh_2\\\\E_2=3150\times 9.8\times 9000\\\\E_2=2.77\times 10^8\ J

So, the potential energy of a boeing 747 airplane is more than the 787 dreamliner airplane.

3 0
3 years ago
Help ! Velocity............
Murrr4er [49]

Answer:

70.7m/s

Explanation:

V =     ( v + u)

          _____

               2

V = average velocity

v = final velocity

u = initial velocity

velocity = distance

                 ______

                   time

u (initial velocity)   = 33 ÷  2

change mins to seconds

1 min = 60 secs

2 mins =  ?

cross multiply

60 × 2 = 120 secs

u = 33 ÷ 120

u = 0.275m/s

v ( final velocity) = 29 ÷ 1.3

change mins to secs

1 min = 60 secs

1.3 mins = ?

cross multiply

1.3 × 60 = 78 secs

v = 29 ÷ 78

v = 0.371 m/s

V =  ( v + u )

       _____

           2

V =    ( 0.371 + 0.275)

         ____________

                    2

V  =   0.51 m/s

                           

5 0
3 years ago
Recently, Frank’s computer has slowed down dramatically. He has also noticed that the time on the computer is not accurate. Fran
Paraphin [41]

Answer:

a. Zombie

Explanation:

Zombies- A cracker — a computer hacker who intends mischief or harm — secretly infiltrates an unsuspecting victim’s computer and uses it to conduct illegal activities. The user generally remains unaware that his computer has been taken over — he can still use it, though it might slow down considerably. As his computer begins to either send out massive amounts of spam or attack Web pages, he becomes the focal point for any investigations involving his computer’s suspicious activities. In one case of zombies it was found that over 1.5 million computers were affected in an attack.

6 0
4 years ago
Estimate the radiation pressure due to a bulb that emits 25 W {\rm W} of EM radiation at a distance of 9.5cm \;cm from the cente
madam [21]

Answer:

7.3*10^{-7}  \frac{N}{m^2}

Explanation:

\frac{25}{(4*\pi*(0.095)^{2}*3*10^8 }

Hope this is right and helps!

8 0
3 years ago
___________ are things that a scientist keeps the same during an experiment.
Keith_Richards [23]

Answer:

independent variable

Explanation:

3 0
3 years ago
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