In diameters of stars, the relative diameters of the two stars in the sirius system were determined. let’s use this value to explore other aspects of this system. this will be done through several steps, each in its own exercise. assume the temperature of the sun is 5800 k, and the temperature of sirius a, the larger star of the binary, is10,000 k. the luminosity of sirius a can be found in appendix j, and is given as about 23 times that of the sun. using the values provided, calculate the radius of sirius a relative to that of the sun.

like poles repel so keep pushing north to north and repels funny to see this

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards