Which change increases the electric force
between objects?
Two neutral objects are moved closer together.
® Electrons are added to two negatively charged objects.
Two oppositely charged objects are moved farther apart.
• The charge on two positively charged objects is reduced

Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.

Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass