Which of the following describes the principle of conversation of charge? a. charge is created b. a charge can be transferred c. charge cannot be created or destroyed, just transferred d. charge can be destroyed

b. latent learning (the word "latent" itself means something that exists but isn't obvious, only under certain conditions! )

what was the acceleration of the 2 kg cart?

⇒ 16.0 cm/s2

what was the acceleration of the 4 kg cart?

⇒ 8.1 cm/s2

what was the acceleration of the 6 kg cart?

⇒ 5.3 cm/s2