Two balls are placed near one another and hang down, as shown below.
Which concusion is supported by this evidence?
O Neither ball hasa charge.
O The balls are both positively charged.
O One ball is positively charged, and the other is
negatively charged.
O Each ball has a charge, but the type of charge is
unknown.

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

Plz mark brainliest 30 points1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s.2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?

What type(s) of intermolecular forces are expected between ch3ch2cooh molecules? dipole forces, induced dipole forces, hydrogen bonding