You find a blood stain that you know was caused by a gunshot. the blood stain would be considered a(n):
passive stain
transfer stain
impact stain
active stain

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.

Your science teacher brings in a speaker to talk to your class about climate change. during the session, students ask a few questions. which questions are related to the current evidence on climate change

The built in flash in a compact camera is usally capable of giving correct exsposure for distance up to how many meters?