Number 1 and 2 are both true
The change means that you can cross when its safe
Answer:
Explanation:
m = Mass of water = 3000 g
c = Specific heat of water =
= Change in temperature of water =
Heat is given by
Heat energy lost is .
The Head Start is a program established in the United States to provided comprehensive education, health, and parent involvement service. An example of a program that heads start to make is having more education to have higher salaries. The head start program is launched in 1965 by Jule Sugarman.
Answer:
A. The combustion of fossil fuels heats water to produce steam, which then turns a turbine.
Explanation:
Most heat-based generation of electricity uses steam and steam-driven turbines to actually turn the generator. This includes coal, oil, gas, and nuclear power, and some solar power as well.
The heat source is used to heat water, turning it to steam. The steam is then directed at a turbine, turning it and the attached generator to produce electricity.