Two insulating spheres have radii 0.300 cm and 0.500 cm, masses 0.400 kg and 0.700 kg, and uniformly distributed charges of -2.00
μ
c and 5.50
μ
c. they are released from rest when their centers are separated by 1.00 m.

(a) how fast will each be moving when they collide? (hint: consider conservation of energy and of linear momentum.)
(b) if the spheres were conductors, would the speeds be greater or less than those calculated in part (a)? (note: assume a reference level of potential v = 0 at r =
[infinity]
.)

Amoving company collects data about couches they move and displays the data in a table. the force along the ramp, the angle of the ramp, and the height the couch is raised to are shown. which statements correctly compare the work done to move the couches? check all that apply. the same amount of work is done for couches 1 and 3. the same amount of work is done for couches 2 and 3. the work for couch 1 is greater than the work for couch 2. the work for couch 2 is less than the work for couch 3. the work for couch 3 is greater than the work for couch 1. the work for couch 2 is greater than the work for couch 1.

Suppose you plot the distance traveled by an object at various times and you discover that the graph is not a straight line. what does this indicate about the object's acceleration?

Three resistance 4,4 and 6 ohms are joined in the series.the total resistance will be