Potential and Kinetic Energy Shade the bar graphs under each panel to show how much potential energy (PE) and kinetic energy (KE) the system has
at each time. Annotate your model to explain what is happening to the potential and kinetic energy in each panel.
before put in place
held in place
after release
Key
N
direction of motion
S
magnet
S
After the magnets
were released.
N
S
Before the magnets
release.
magnetic field line
energy in system
energy in system
energy in system
KE
PE
PE
KE
PE
KE

What effect might melting sea ice have for people who live in coastal areas?

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

Consider the reaction of a(g) + b(g) + c(g) => d(g) for which the following data were obtained: experiment initial [a], mol/l initial [b], mol/l initial [c], mol/l initial rate, mol/l.s 1 0.0500 0.0500 0.0100 6.25 x 10^-3 2 0.100 0.0500 0.0100 2.50 x 10^-2 3 0.100 0.100 0.0100 1.00 x 10^-1 4 0.0500 0.0500 0.0200 6.25 x 10^-3 what is the rate law for the reaction?