600 grams of bolling water (temperature 100° C, specific heat capacity 4.2 3k/gram) are poured into an aluminum pan whose mass is 870 grams and initial temperature 28 (the specific capacity of aluminum is 0.9 J/K/gram).

After a short time, what is the temperature of the water?

What simplifying assumptions did you have to make?

a. Assume the specific heat capacity is nearly constant in this temperature range.

b. Assume that energy diffuses throughout the pan and water so that all parts reach the same final temperature.

c. Assume that the water temperature hardly changes.

d. Assume negligible energy transfer between the surroundings and the system consisting of the pan plus the water.

electrical power

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.

answer: 31, 5556. 952 seconds

80cm/s.

24cm/s.

53.3cm/s.