During convection of air currents,

a. all air rises.

b. cool air sinks.

c. warm air sinks.

d. air is cooled by a heat source.

The specific heat of liquid water is 4.184 j/g-k. the latent heat of melting (ice to liquid is 6.0102 kj/mol. define q100-0 = the amount of heat released by water when it is cooled from boiling to freezing.

Explain, in complete sentences, Issac Newton's Laws Of Motion. Explain how each law is applied in the real world

In terms of thermal energy, why does a bottle of soda left in the sun have a higher temperature than one left in an ice chest?

Air at 257°C and 400 kPa is contained in a piston cylinder device. The air expands adiabatically until the pressure is 100 kPa. Determine the mass of air needed to produce maximum work of 1000 kJ.

Which of the following substances would conduct electricity the best? A. an acid that dissociates (dissolves) 100% B. an acid that dissociates (dissolves) 80% C. an acid that dissociates (dissolves) 50% D. an acid that dissociates (dissolves) 10%

Democritus proposed that atoms are held together by chemical bonds, but no one believed him. True or False

A 51.7 kg box initially at rest is pushed 6.99 m along a rough, horizontal floor with a constant applied horizontal force of 84.1457 N. If the coefficient of friction between box and floor is 0.142, find the work done by the applied force.

What are the cell structures that converts nutrients for energy in cell functions?

On a bus traveling north at 20.0m/s, a child stands up and walks towards the back of the bus at 1.3m/s. What is the child's resultant velocity?

Morris needs to build a new ramp outside of the front door of the office building. In order to do this, Morris needs wood to make the ramp, screws to hold it together, and electricity to run a saw to cut the wood. How will these materials be listed?