Science help PLEASE!!!!?

1. Energy from the sun reaches the earth by______

2. (water, iron, rubber) is a good conductor of heat energy.

3. state the three laws of thermodynamics

4. the initial temperature of 25.0 g ethanol is 37.0 degree celsius. what will be the final temperature if 3.5 kJ of heat energy is added?

5. How much energy will cause the temperature of 7.0 kg of carbon to increase its temperature by 15.0 K?

6. what celsius temperature equals 78.5 degrees fahrenheit?

7. what is the expected temperature change if 12.5 kJ of heat energy is added to 25.0 g of water?

8. a 12.5 piece of copper at 93.5 degree celsius is added to 35.0 g of 20 degree celsius water in an insulated container. What is the final temperature of both the copper and the water if no heat energy is lost to the surroundings?



it would really help if you could answer at least one or two of these questions. i really need you help.

Thank you

your help is greatly appreciated

=PScience help PLEASE!!!!?
Question 1 -



Radiation...



Q2



Iron...



thats all i can help you with :PScience help PLEASE!!!!?
google is your friend.Science help PLEASE!!!!?
1

electromagnetic radiation



2

iron



man, are we feeling lazy today or what?Science help PLEASE!!!!?
water is a very useful resource.

solar energy which reaches the earths surface which is free of cost. so we must use these alternative sources ,so the science has helped us a lot but now we are responsibleScience help PLEASE!!!!?
1. by early morning every day

2. water (try it if you dont trust)

3. 1st law, 2nd law , third law

4.calculate temp T =(c*f*r/M )+(8*X*Y*Z)- (H*T)\277.98

5. depends on how much energy you need

6. leave it

7. We cant expect we have to solve

8.Out of syllabus



Hope i answered all your questions. Dude this is a place to clarify your doubts not to do your homework.