Question

♧ When 0.15 kg of ice at 0 °C is mixed with 0.3 kg of water at 50 °C in a container.
The resulting temperature is 6.7 °C. calculate the latent heat of fusion of ice. Given: Sw = 4186 J kg -1K -1 .

♧ A spring with a spring constant 1200 Nm-1 is mounted on a horizontal table and one end is fixed.
A mass of 3 kg is attached to the free end of the spring. The mass is then pulled sideways to a distance of 2 cm and released.

Calculate :-
(a) the frequency of oscillation of the mass,
(b) the maximum acceleration of the mass, and
(c) the maximum speed of the mass.



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Answer 1

Answer:

76

65

12

Explanation:

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