COMPARE the amount of POTENTIAL ENERGY the roller coasters has at Point H to the amount of POTENTIAL ENERGY the roller coaster has at Point A

Athin, square metal plate measures 14 cm on each side and has emissivity of 0.60. the plate is heated to a temperature of 745°c. what is the rate at which the plate radiates energy ? the stefan-boltzmann constant is 5.67 × 10-8 w/(m2 ? k4). remember that the plate will radiate energy from both its top and bottom surfaces.

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid