Two forces, F⃗ 1 and F⃗ 2, act at a point. F⃗ 1 has a magnitude of 8.80 N and is directed at an angle of 57.0 ∘ above the negative x axis in the second quadrant. F⃗ 2 has a magnitude of 5.20 N and is directed at an angle of 52.6 ∘ below the negative x axis in the third quadrant.

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?

The law of reflection states that the angle of reflection is equal to the angle of