Open Question: Do television and radio stations emit signals out to any specific part of space?

Open Question: Do television and radio stations emit signals out to any specific part of space?

Ok. This is my question...
I'm wondering if radio stations, or tv stations, emit everyday live signals towards any parts in outer space and why?

Also if Live everyday television ever gets recorded and stored in a mass hardrives?


View the original article here

Open Question: Specific Heat Capacity - Alternate method?
Open Question: How do you calculate the unknown mass in a specific heat problem?

Open Question: How do you calculate the unknown mass in a specific heat problem?

I know that Q=m(C)deltaT
. I just can't figure out how you set up the formula. I don't want you to give me the answer i just want help setting up the equation.

here's the info that i do know.

Q= 1950J
M=?
deltaT=33.8
C=.75(pyrex glass)


View the original article here

Open Question: what would the loss of an entire cerebral hemisphere on specific functions?
Open Question: Why does white sand have a higher specific heat than water?
Open Question: What does the specific heat for a substance indicate?

Open Question: What does the specific heat for a substance indicate?

A) the heat released when 1 gram of the substance burns

B) the amount of heat required to increase the temperature of 1 gram by 1oC

C) the amount of heat required to increase the temperature of 100 grams by 1oC

D) the amount of heat required to increase the temperature of 1 gram by 100oC

E) the heat released when 100 grams of the substance burns


View the original article here

Open Question: calculate specific heat capacity of ice?

Open Question: calculate specific heat capacity of ice?

Home >All Categories > Science & Mathematics >Chemistry >Open QuestionLisa Lisa Member since:December 25, 2010Total points:97 (Level 1)Some students did an investigation to determine the specific heat capacity of ice. They did this by heating 100g of water and 100 g of ice in separate beakers simultaneously on the same hot plate. The temperature of water changed from 22 degrees C to 24 degrees C while the temperature of ice changed from -7 degrees C to -3 degrees C. What is the specific heat capacity of ice if the specific heat capactiy of liquid water is 4.2 J/g/degrees C?Answer Question


View the original article here