Which statement correctly describes gravity?

a) an attractive force that acts between all objects through contact

b) an attractive force that acts between all objects without contact

c) a repulsive force that acts between all objects through contact

d) a repulsive force that acts between all objects without contact

The answer is: B. attractive force that acts between all objects without contact.

hope this helps! 

a small object of mass 3.66 g and charge -17.6 µc is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. what are the magnitude and direction of the electric field?

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be