The specific heat of a substance which absorbs 7.5 X 10' J of
heat when a sample with a mass of 1.0 x 105g of the
substance increases in temperature from 10°C to 90°C will
be:

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? a. the balloons both rise. the cold balloon is larger than the warm balloon. b. the balloons rise at the same rate. both balloons are the same size. c. the warm balloon expands and rises. the cold balloon shrinks and sinks. d. the cold balloon expands and rises. the warm balloon shrinks and sinks.

What is the common name for the compound shown here? enter the common name of the compound shown?

What four properties do all waves have in common