Answer:
a
Explanation:
because u times 2 times 1 witch is below 2
Answer:
moves into a region of higher potential
Potential difference = 835 V
Ki = 835 eV
Explanation:
given data
initial speed = 400000 m/s
solution
when proton moves against a electric field so that it will move into higher potential region
and
we know Work done by electricfield W is express as
W = KE of proton K
so
q × V = 0.5 × m × v² ......................1
put here va
lue
1.6 × 
× V = 0.5 × 1.67 × 
× 400000²
Potential difference V = 1.336 × 10-16 / 1.6 × 10-19
Potential difference = 835 V
and
KE of proton in eV is express as
Ki = V numerical
Ki = 835 eV
Answer:
0.3 eV, 0.5eV,, 8 eV, 2.0eV, 2.50 eV, 2.8 eV
Explanation:
In a given material the emission and absorption spectra are equivalent, for which the emission spectrum observed at high temperature for the material corresponds to the transition between the energy states of the material, the process is that the electrons exist from the ground state until an excited state and after a short period of time or these electrons relax emitting photons.
In the absorption process, the material is at low temperature, ideally at A = 0K, whereby all states are in the ground state and all excited states are empty. therefore it can absorb the beam energy for each transition given from the ground state to each excited edtado.
Consequently, the lines above the absorption oscillate lines coincide with the lines of emotion, this we see lines oscillate at 0.3 eV, 0.5eV,, 8 eV, 2.0eV, 2.50 eV, 2.8 eV
consider the motion of the marble in vertical direction or Y-direction :
Y = vertical displacement as the marble rolls from tabletop to floor = height of table = - 1 m (negative since the displacement is in down direction)
g = acceleration due to gravity = - 9.8 m/s²
t = time taken to travel from tabletop to bottom = ?
v₀ = initial velocity in vertical direction = 0 m/s
using the kinematics equation
Y = v₀ t + (0.5) a t²
- 1 = (0) t + (0.5) (- 9.8) t²
t = 0.45 sec
consider the motion of the marble in horizontal direction or X-direction :
X = horizontal displacement as the marble rolls from tabletop to floor = height of table = 0.54 m
a = acceleration in horizontal direction = 0 m/s²
t = time taken to travel from tabletop to bottom = 0.45 sec
v = initial velocity in horizontal direction = ?
using the kinematics equation
X = v t + (0.5) a t²
0.54 = v (0.45) + (0.5) (0.45) t²
v = 1.2 m/s
Answer:
Russia
Explanation:
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