दुनिया की 10 अजीबो गरीब चीजे | 10 Intresting Things Of The World | Fun Facts | Facts | #shorts

In a X th standard examination out of the 100 students appeared 50 passed in all the subjects, 20 passed in science subjects only and 10 passed in languages only. All the remaining students failed in all subjects. Which of the following represents this fact?

A vertical steel beam at the base of buiolding is 6.0 m tall, thas a mass of 300 kg, and supports a load of 3.0xx10^(5)N . If the beam's temperature decreases by 4.0^(@)C , calculate the change in its internal energy using the facts that for steel c_(p) is 0.11 "kcal"//kg^(@) and the coefficient of the linear expansion is 11xx10^(-6).^(@)C^(-1)