If a cup of coffee is at 90°c and a person with a body temperature of 36°c touches it, how will heat flow betw
from the hand to the cup
from the cup to the hand
from the cup to the surrounding air
from the hand to surrounding air

Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.

If steel is more dense that lake water, why can a boat float

Asynthetic fiber used in manufacturing carpet has tensile strength that is normally distributed with mean 75.5 psi and standard deviation 3.5 psi. how is the standard deviation of the sample mean changed when the sample size is increased from n equals 8 to n equals 47