A binary star has a mass of three times the mass of the second, so if the parallax angle is (“p = 0.37) and the angular dimension of the two stars (a = 7.57 °). Find the mass of each star in terms of the mass of the Sun, knowing that the rotational time of the star is (p = 50 yr).​

the aurora is formed when charged particles emitted from the sun during a solar flare penetrate the earth's magnetic shield and collide with atoms and molecules in our atmosphere. these collisions result in countless little bursts of light, called photons, which make up the aurora.

auroras are generated by charged solar particles hitting molecules in earth's atmosphere. this usually happens in high latitudes, because our planet’s magnetic field tends to funnel these particles toward the poles. that’s why it can be experienced in northern ohio.

the answer is c. the lower legs are levers, and the knees are fulcrums. the ankles hold the loads.