A vinyl tube is rubbed with animal fur. The vinyl tube is brought near paper bit and observed to attract them. The vinyl tube has been charged by the method of what?

The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?

Answer fast! which lens can produce a virtual image and a real image? concave lens convex lens flat lens

Based on the information about, write 1 paragraph explaining if you are in favor of nuclear power plants or against nuclear power plants. explain your reasoning