Each dot represents a star in the H-R diagram. We can see that stars do not appear randomly on the plot but appear to be grouped in four main regions. Stars in group C are called supergiants. A red supergiant such as Betelgeuse is so large that it would extend beyond the orbit of Jupiter if it replaced the Sun in our solar system. What else can we infer about supergiants from the H-R diagram?

The slotted link is pinned at o, and as a result of rotation it drives the peg p along the horizontal guide. compute the magnitude of the velocity and acceleration of p along the horizontal guide. compute the magnitudes of the velocity and acceleration of p as a function of θ if θ=(3t) rad, where t is measured in seconds.

Which object is most likely represented by a dot?

You are a sales representative for a company that makes a new alternate fuel for vehicles. you have prepared a presentation for the environmental engineers to sell your new product. what question do you expect the audience to ask regarding whether the new fuel will cause less damage to the environment? a. do we have to change any parts of the vehicle to use this alternate fuel? b. will the vehicles get better fuel mileage with the alternate fuel? c. how much greenhouse gas does your fuel produce compared with current fuel sources? d. is the alternate fuel more expensive than fossil fuel?