A student with mass 50 kg is standing in a canoe (with mass of 30 kg) in still water. The student then jumps out of the canoe to the right with a speed of 1.5 m/s. The initial velocity of the canoe
IS
Select one:
A 1.5 m/s to the left.
B.2.5 m/s to the left.
C. 0. The canoe does not move.
D.2.5 m/s to the right

Which example has gravitational potential energy? a.a horse slowing down from a run b.an apple about to fall from a tree branch c.a bicycle being pedaled down a horizontal path d.beaker sitting on the floor

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?

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?