PLEASE HELP FIRST ONE TO ANSWER GETS BRAINLEST!!!
Kevin wants to use some or all of these materials to make a portable shower that will store and provide hot water on sunny days.
• Describe two criteria or constraints of the problem. Include energy transformation and energy transfer in one criterion or constraint.
• Describe a possible solution to the problem. Include what happens to thermal energy in your answer.
Explain the reason for your choice of materials.

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

An alkaline battery produces electrical energy according to the following equation. zn(s) + 2 mno2(s) + h2o(l) zn(oh)2(s) + mn2o3(s) (a) determine the limiting reactant if 17.5 g zn and 31.0 g mno2 are used. (type your answer using the format ch4 for ch4.) (b) determine the mass of zn(oh)2 produced. _ g

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.