The temperature coefficient of resistivity of platinum is 3.9*10^ -3 ^ C . If a platinum wire has a esistance of Rat room temperature (23 degrees * C) , to what temperature must it be heated in order to double its resistance to 2R?​

It can take some of those large , industrial vehicles up to feet to stop when traveling only 60 mph, and therefore , you shoukd be mindful to not be jn the traffic right in front of them a. 100 feet b. 200 feet c. 335 feet d. 425 feet

An object's buoyant force and weight mean the same thing.a. trueb. false

Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?