Aprojectile follows a straight-line path instead of a parabolic trajectory. which could be the launch angle? would it be 90 or 45 or 3o? ?

Ingrid wrote the hypothesis below. if the temperature of a liquid increases, the density of the liquid decreases because the particles move farther apart. what are the variables in her hypothesis?

Three point charges, two positive and one negative, each having a magnitude of 20 μc are placed at the vertices of an equilateral triangle (30 cm on a side). what is the magnitude of the electrostatic force on the negative charge

Aregular polygon has angkes of size 150° each.how many side has the polygon