7- A ball of 2 kg mass falls to the ground from a height of 3 m. During the fall and bounce, 10% of his energy is converted into heat. How many meters will the ball rise from the ground on the first bounce? A) 1,5 B) 3 C) 2,1 D) 2,7 E) 1

6 please help

16) The figure shows a graph of the temperature of a pure substance as a function of time as heat is added to it at a constant rate in a closed container. If Lp is the latent heat of fusion of this substance and Ly is its latent heat of vaporization, what is the value of the ratio Ly/LF? Temp. Time B) 4.5 C) 3.5 D) 1.5 E) 5.0 A) 7.2

11. An object I has four times the specific heat capacity and half the mass of object 2. The same heat transferred into both objects. If the changes temperature of object I has & T₁. what is the changes temperature & T₂ in object 27 a) The same as object I b) 24 T₁ c) 16 AT, AT₁ d) 41 12. The internal Energy of a certain volume of gas enclosed in a container DOES NOT depend on a) The shape of the container b) The temperature of the gas c) The kinetic energy of the molecules of the gas d) The number of atoms in a molecule of the gas 13. An ideal gas is taken from state A to state B through the isothermal process shown on the P-V diagram in Figure 3. How much heat is added to the gas in this process? a) 2.4 × 10¹ J b) 1.4 x 10¹ J c) 8.8 × 10¹ J d) 0 b) 6.2 - 10-¹7 J c) 5.4 - 10¹1 J d) 1.4 - 10:¹9 J 15. Entropy is measure of a) system efficiency b) heat transfer Pressure (Pa) c) degree of randomness d) capacity 35.18² 30-10² 24-16 29.10 1.5.18 18-1² 30.10² 10 40 14. In one mole of…