Which are descriptions of gravity on earth? check all that apply. an attractive force a repulsive force a noncontact force a contact force a horizontal force a vertical force

Ahydroelectric plant takes energy from water and turns it into electrical energy. what are the transformations of energy in the water molecules that are used in the process of generating electricity this way?

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?

The particle p starts from rest at point a at time t = 0 and changes its speed thereafter at a constant rate of 2.8g as it follows the horizontal path shown. determine the magnitude and direction of its total acceleration (a) just before point b, (b) just after point b, and (c) as it passes point c. state your directions relative to the x-axis shown (ccw positive) and choose the angle with the smallest magnitude.