Which of the following statements not true? select one: a. a nucleus has a positive charge. b. protons have a positive charge. c. neutrons have no charge. d. neutrons have a negative charge

Ineed asap! list 3 examples in which friction us or makes things easier in our daily life. explain the effect of friction for each. *make sure you explain the effect of friction for each example! *

The softest and hardest minerals are: softest hardest

14. a body is projected with velocity vi from a. at the same time another body is projectedvertically upwards from point b withvelocity v2 lies vertically below the highestpoint. both the bodies collide thenv2÷v1is