Question

A massless spring is suspended from ceiling. When a block of mass m is suspended from it, the elongation
in equilibrium is h. A ball of same mass is thrown up towards the suspended spring as shown with speed
v. It compresses the spring by amount h before coming to rest. The value of v will be :-
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Answer 1

Answer:

A reaction A(aq) +B(aq) 근 C(aq) has a standard free-energy change of -3.30 K/mol at 25 °C What are the concentrations of A, B, and C at equilibrium if, at the beginning of the reaction, their concentrations are 0.30 M, 0.40 M, and 0 M, respectively? Number Number Number A」= MI [B]- [c] = 1 How would your answers above change if the reaction had a standard free-energy change of +3.30 kJ/mol? O O O O There would be no change to the answers. All concentrations would be higher. All concentrations would be lower. There would be more A and B but less C. There would be less A and B but more C

Answer 2

Answer:

√5gh

Explanation:

Apply work energy theorem.