Answer:
KE=2.3 x 10⁻¹⁹ J
Explanation:
Given that
λ = 544 nm
λ' = 485 nm
The kinetic energy KE given as
KE= E - Ф
Where
h= 6.626 x 10⁻³⁴
C=3 x 10⁸ m/s
Now by putting the values
KE=2.3 x 10⁻¹⁹ J
This is kinetic energy.
A 6780 kg space probe, moving nose-first toward Jupiter at 126 m/s relative to the Sun, fires its rocket engine, ejecting 65.0 k
g of exhaust at a speed of 223 m/s relative to the space probe. What is the final velocity of the probe
1 answer:
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Answer:
the list of forces from greatest to least is Y, W, X, Z
Explanation:
Given data:
5 pairs of charged plates with force between each pair as : F, W, X,Y, Z
Also given are the charges q1 and q2 of plates in each pair and the distances between them (refer attachment)
To find: to arrange the force from greatest to least.
Initial step is to calculate the force value using the given data of charges and distance between plates.
We know that the force between two charged plates is given by the formula:
F =
where,
q1 and q2 are charge of the two plates
r is the distance between two plates
k is coulomb constant
Since the problem involves comparison of forces, the k values is not necessarily discussed.
Now we have to calculate force values
F =
W =
X =
Y =
Z =
Assume values of q = 1 and d = 2, we get
F = 0.5k
W = 0.5k
X = 0.0625k
Y = 0.75k
Z =0.025k
F and W are though same, the calculated force value shows W = 2F
Hence W is greater than F.
Therefore, the list of forces from greatest to least is Y, W, F, X, Z
Hence answer is : Y, W, X, Z
