HELP 50 POINTS
A weight is suspended from a string and spun in a circle. The string passes through a vertical tube and comes out the bottom. The demonstrator’s hand holds the string below the tube. If the demonstrator pulls down, the weight will both move the tube and its angular velocity.
Question 1 options:
A. closer to, decrease
B. closer to, increase
C. farther from, decrease
D. farther from, increase

According to the law of conservation of mass, in a chemical reaction the total starting mass of all the reactants equal the total final mass of all the products. true or false?

Describe the path of the electric current through a circuit?

The intensity of a polarized electromagnetic wave is 12 w/m^2. part a) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=0∘ with the plane of polarization? part b) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=30∘ with the plane of polarization? part c) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=45∘ with the plane of polarization? part d) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=60∘ with the plane of polarization? part e) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=90∘ with the plane of polarization?