To solve this problem it is necessary to apply the concepts related to the change of Energy in photons and the conservation of energy.
From the theory we could consider that the energy change is subject to

Where
Initial Energy
Energy loses
Replacing we have that


Therefore the Kinetic energy of the electron once it has broken free of the metal surface is 0.8eV
Answer:
Acceleration, a = 750m/s²
Explanation:
Given the following data;
Radius, r = 0.31m
Velocity, v = 15m/s
To find the centripetal acceleration;

Substituting into the equation, we have;
Acceleration, a = 750m/s²
Therefore, the centripetal acceleration of the bike wheel is 750m/s².
Using the division operation, the <em>number of tubes gotten by each patient </em>can be obtained by <em>dividing 20 by 5</em>. Hence, each patient will get 4 tubes of solution.
<u>Tubes of solution received</u> :
- 10 a.m = 2 tubes
- 12 p.m = 4 tubes
- 3 p.m = 8 tubes
- 6 p.m = 6 tubes
<u>Total tubes received</u> :
- (2 tubes + 4 tubes + 8 tubes + 6 tubes) = 20 tubes
- Number of patients = 5 patients
<u>Number of tubes of solution gotten by each patient</u> :
- (Total tubes of solution ÷ number of patients)
Tubes of solution per patient = (20 ÷ 5) = 4 tubes
Therefore, each patient will get 4 tubes of solution.
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