An iron vat is 11 m long at room temperature (20°c). how much longer is it when it contains boiling water at 1 atm pressure?

The change in length is 0.01056 m.

Explanation:

Given that,

Length = 11 m

Temperature = 20°C

Pressure = 1 atm

Boiling temperature = 100°C

We need to calculate the length

Using formula of change in linear expansion

Put the value into the formula

Hence, The change in length is 0.01056 m.

the answer is b i think

c) up is the direction the magnetic force is acting on the charge.