Object a experiences an attractive force of 50 n when it comes close to object b. if object a is positively charged, what can you say about object b?
1. you cannot tell from the information given.
2. object b is negatively charged.
3. object b is positively charged.
4. object b is neutral.

If two metal balls each have a charge of -10^-6 c and the repulsive force between them is 1 n, how far apart are they? (coulomb's constant is k = 9.0x 10^9 n-m^2/c^2? 9.5 m 9.0 mm 9.5 cm 0.9 m .

Orque can be calculated by multiplying the force (n) applied at 90? to the lever arm at a distance (m) from the pivot point (point of rotation), the compound si unit for the torque is n? m. if the force (at 90? to the lever arm) applied is 15 n and it is applied at 2.0 m from the pivot point (point of rotation), what is the torque on the lever?

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?