After an afternoon party, a small cooler full of ice is dumped onto the hot ground and melts. If the cooler contained 8.70 kg of ice and the temperature of the ground was 44.5 °C, calculate the energy that is required to melt all the ice at 0 °C. The heat of fusion for water is 80.0 cal/g

Agood hypothesis includes which of the following? a: prediction b: data c: uncertainty d: conclusion

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.

Which samples do the atoms have the least kinetic energy