A is the answer to the question
solution:
the kinetic energy acquired by the electron when it is accelerated y an electric field is
k=5.25\times10^-16j
the kinetic energy acquired by the electron will ne proportional to the potential difference between the plates across which the electric field is applied.it is given by,
e\Delta v = k
here,\delta v is the potential difference between the plates, e is the charge on an electron and k is the kinetic energy.
reassange the above expression
\delta v = \frac{k}{e}
the potential difference between the plates will be
\delta v = \frac{k}{e}
sunstitute 5.25 \times 10^-16j for k and 1.6 \times10^-19c for e is the above equation
\delta v =\frac{5.25\times10^-16j}{1.60\times10^-19c}
=3.28\times10^3v(\frac{1kv}{1000v})
=3.28kv
since the electrons will e accelerated towards the plate at higher potential.
hance p;ate b will be at higher potential
Answer:
139.4 N
Explanation:
from the question we are given the following
distance (s) = 1 m
time (t) = 1.7 s
power (p) = 82 W
force (f) = ?
we can get the force by applying the formula below
power = work done / time
where work done = force x distance
therefore power = (force x distance ) / time
82 = (f x 1) / 1.7
f = (82 x 1.7) / 1 = 139.4 N
Current = charge per second
2 Coulombs per second = 2 Amperes
Potential difference = (current)x(resistance) in volts.
That's (2 Amperes) x (2 ohms).
That's how to do it.
I think you can find the answer now.
(b) The Planck time is given as
T=
=5.39×
of the same order of magnitude as the ultra hot epoch
<h3>What exactly is Planck Time?</h3>
- The Planck time is the fundamental unit of time in the Planck Unit system. It has the following worth:
- =5.39×
- Measurements of time in SI units are made in seconds (usually given the symbol s). Although measuring the time it takes an athlete to sprint 100 meters or the length of a phone call in seconds is convenient in everyday life, it becomes less practical when discussing the sequence of events that occurred in the very early Universe (such as the onset of inflation that occurred 10-35s after the Big Bang).
- The entire geometry of spacetime predicted by general relativity breaks down at this scale. As a result, to describe the laws of physics on such scales, an as-yet undiscovered theory combining general relativity and quantum mechanics is required. As a result, our current descriptions of the Universe's early evolution begin at =5.39× seconds after the Big Bang.
To learn more about Planck Time refer to
brainly.com/question/26117248
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