Suppose that you are camping in the mountains. You need tp melt 1.50 kg of snow at 0.0C and heat it to 70.0C to
make hot cocoa. How much heat will you need? Make sure
to filter the water after you consume it.
Hf = 3.34 x 10^5 J/kg
C = 4186 J/kg C

Ateam of astronauts is on a mission to land on and explore a large asteroid. in addition to collecting samples and performing experiments, one of their tasks is to demonstrate the concept of the escape speed by throwing rocks straight up at various initial speeds. with what minimum initial speed vesc will the rocks need to be thrown in order for them never to "fall" back to the asteroid? assume that the asteroid is approximately spherical, with an average density p 3.84 x108 g/m3 and volume v 2.17 x 1012 m3 recall that the universal gravitational constant is g 6.67 x 10-11 n m2/kg2

Complete the statement about memory improvement. ( )involves organizing and breaking down information into easier groups to expand capacity. rehearsal is the verbal repetition of information. these techniques are especially important for the improvement of ( ) memory.

When using the scientist method, which step comes last?