California I think not sure

V = IR

Where:

V = Voltage

I = Current

R = Resistance

**2.37eV **stopping potential would be required to arrest the current of photoelectrons.

<h3 /><h3>What is stopping potential ?</h3>

The **minimal negative** voltage that must be provided to the **anode **to halt the photocurrent is known as **stopping potential**. When expressed in electron volts, the maximal kinetic energy of the electrons is equal to the stopping voltage.

Kmax = eV₀

2.37eV = eV₀

**V₀ = 2.37eV **

to learn more about **stopping potential **go to - brainly.com/question/4655588

#SPJ4

**Answer:**

The coefficient of friction in the hall is **0.038**

**Explanation:**

Given;

mass of the Parker, m = 73.2 kg

applied force on the parker, F = 123 N

frictional force, Fs = 27.4 N

the coefficient of friction in the hall = ?

frictional force is given by;

Fs = μN

Where;

μ is the coefficient of friction

N is normal reaction = mg

Fs = μmg

μ = Fs / mg

μ = (27.4) / (73.2 x 9.8)

**μ = 0.038**

Therefore, the coefficient of friction in the hall is **0.038**