A sensor made of a conducting sphere of 1m in diameter is placed at a distance of
L=2 × 10^8 km from a star of radius R=6 × 10^5 km. The recorded temperature on the sensor is 300K. What is the surface temperature of the star?

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

that would be because of both gravity and friction. so     c