In 2004 astronomers reported the discovery of a large jupiter-sized planet orbiting very close to the star hd 179949 (hence the term "hot jupiter"). the orbit was just 19 the distance of mercury from our sun, and it takes the planet only 3.09 days to make one orbit (assumed to be circular). what is the mass of the star? express your answer (a)in kilograms and (b)as a multiple of our sun's mass.

An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?

High schoolphysics 5+3 pts a neon light consists of a glass tube with metal wires at each end. when connected to a high-voltage source, the gas glows. if a fly lands on the glass tube, what will most likely happen? a) the fly will not feel a shock because the glass conducts any free electrons back into the gas. b) electrons will flow directly from the metal wires along the glass and shock the fly. c) the fly will not feel a shock because the glass insulates it from the electrons in the gas and the metal. d) electrons that are moving through the gas will be conducted through the glass and shock the fly.

There are two routes similar in terrain; however, one route has an incline of approximately 28 degrees, and you must decide on which route to take. what is the maximum road grade that your fully loaded ecv can climb?