A 3.8-mole sample of an ideal gas is gently heated at a constant temperature of 340 K. The gas expands to 2.3 times its initial volume. What is the change in the internal energy of the gas? Let the ideal-gas constant R=8.314 (mol x K)

a lot of it means it can be "burned" for energy and sold at one price. if it is scarce, the price will go up

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

answera compound;

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.