PLEASE HELP Question 4 of 10
Which statement is true of a piece of ice at 0°C that is put into a freezer at
-18°C?
A. The ice cube will remain unchanged.
B. The ice cube will gain mass from the surroundings.
C. The ice cube will lose thermal energy to the surroundings.
D. The ice cube will gain thermal energy from the surroundings.

Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.

Which of the following is not am example of a polymer? protein nylon kevlar concreta

A- a of 8.00 cm a of 34.0 nc. a , -, a of 25.0 nc is on of a of 15.0 cm .be toto aof ? a) b) c) j d) e)