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Alchen [17]
3 years ago
14

Why is centrifugal force in a rotating frame called a fictitious force?

Physics
1 answer:
mars1129 [50]3 years ago
6 0

Answer:

Explanation:

They are called "fictitious" because the physical forces leading to motion are accounted for in the construction of the non-inertial frame rather than being included as a "real force" term in the equation of motion. Instead, the terms are built into the equation of motion itself in a non-inertial frame.

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a small negatively charged sphere with a mass of 5.4*10^-5 is suspended between two parallel plates. the potential difference is
labwork [276]
Here, Fe = Fg
q.E = m.g
We have: E = 360 V
m = 5.4 × 10⁻⁵
g = 9.8 m/s²   [ constant value for earth system ]

Substitute their values into the expression:
q (360) = 5.4 × 10⁻⁵ × 9.8
q = 52.92 × 10⁻⁵ / 360
q = -1.47 × 10⁻⁶  [ negative sign represents the nature of charge ] 

So, Your Final answer would be 1.47 × 10⁻⁶

Hope this helps!
3 0
4 years ago
PLEASE HELP. A substance decays according the the equation ae^-0.0025t, where t is in minutes. Find the half life of the substan
mojhsa [17]

First of all, that's not an equation.  An equation needs an 'equals' sign ( = ),
so you need something like 

               Amount present = a e^-0.0025t .

                                   'a' = amount present when t = 0 .

The half-life is the time it takes for the original amount to decay to half of it.

That's just 't' when                      e^-0.0025t  =  1/2

Take the natural log of each side:    -0.0025t  =  ln(0.5)

Divide each side by  -0.0025 :        t = ln(0.5) / (-0.0025) =

                                                     (-0.69315) / (-0.0025) =

                                                   <em>t  =  277.26 minutes</em>

                                                    ( 4hrs 37min 15.5sec)

Rounded to nearest tenth:  t = 277.3 minutes .


3 0
4 years ago
Is there a way to approximate the distance from a black hole's singularity to it's event horizon ? If so, what formula is used t
strojnjashka [21]

Answer:

I suck d hun ok?

I don't know

4 0
3 years ago
What is the color of the peak frequency of solar radiation when it is plotted versus wavelength?
NikAS [45]
The color of the peak is yellow-green.
4 0
3 years ago
Compare the kinetic energy of a 20,000-kg truck moving at 110 km/h with that of an 80.0-kg astronaut in orbit moving at 27,500 k
laiz [17]
Kinetic energy is the energy that is possessed by an object that is moving. It is calculated by one-half the product of the mass and the square of the velocity of the object. We calculate as follows:<span>

For the truck,
KE = mv^2 / 2
KE = 20000 kg (110 km/h (1 h/3600 s)(1000 m / 1 km))^2 / 2
KE = 611111.11 J

For the astronaut,
KE = 80.0 kg (27500 km/h</span>(1 h/3600 s)(1000 m / 1 km)<span>)^2/2
KE = 611111.11 J

The kinetic energy possessed by the two bodies are the same.

</span>
3 0
3 years ago
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