Yashoda prepares some lime juice on a hot day. She adds 80 g of ice at a temperature of 0°C to 0.32 kg of lime juice. The temperature of the lime juice decreases from 29°C to 8°C and all the ice melts. Calculate:

a) the energy required to to melt 80 g of ice.

b) the energy gained by the melted ice

c) the energy lost by the lime juice

d) the specific heat capacity of the lime juice

(latent heat of fusion of ice = 3.4 x 10^5 J/kg

specific heat capacity of water = 4.2 x 10^3 J/kg°C)​

One number is said to be an "order of magnitude" larger than another number if choose one: a. it is 10 times larger. b. it is 5 times larger. c. it is 3 times larger. d. it is 100 times larger. e. it is 2 times larger.

Which are true about beta reactions? there will be more than one answer. a. it has no change b. it doesn't change the mass of the number c. it has a mass of 0.0005 atoms d. it causes transmutation.

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.