An ice cube at a temperature of 0 °C is put into a drink at a temperature of 10 °C. After a short time, some of the ice has melted and the drink has cooled to a temperature of 8 °C.
What is the temperature of the remaining ice?
ABCD
O 0°C
O 2 °C
O 4 °C
O 8°C

Amachine, modeled as a simple spring-mass system, oscillates in simple harmonic motion. its acceleration is measured to have an amplitude of 5,000 mm/s with a fre- quency of 10 hz. compute the maximum displacement the machine undergoes during this oscillation.

May someone explain how to do this question?

The “death throes” of stars are amongst the most complex phenomena in all of astronomy, and the “corpses” of stars amongst the most energetic and exotic objects in existence. beginning at the end of the core helium fusion stage in a star’s life, describe in detail the post-main sequence development of both (a) a 1.0 solar mass star, and (b) a 25.0 solar mass star. in what significant ways do they differ? what role does each of these types of stars play in the "star-gas-star" cycle and the evolution of chemical elements in our galaxy?