How does the mass of an object change when it acquires a positive charge? 1. decreases 2. more information is needed. 3. increases 4. doesn't change?

(01.02 mc) nicole pushes her bike up a hill. overhead, the sun exerts a gravitational force on earth. which statement is true about the bike and earth? they both experience contact forces. they both experience non-contact forces. the bike experiences a non-contact force and earth experiences a contact force. the bike experiences a contact force and earth experiences a non-contact force. they both experience non-contact forces.

Positrons are spontaneously emitted from the nuclei of

Of is j/kg·k. if a 2.6 kg of isk to k, is ?