When two liquids are mixed in an endothermic reaction, what always happens to the temperature of the solution? a. it gets warmer. b. it cools off until it freezes. c. it heats up until it boils. d. it gets colder.

Assuming weightless pulleys and 100% efficiency, what is the minimum input force required to lift a 120 n weight using a single fixed pulley?

Which composition of water moves to begin a deepwater current?

Rank the six combinations of electric charges on the basis of the electric force acting on q1. define forces pointing to the right as positive and forces pointing to the left as negative. rank positive forces as larger than negative forces. q1,q2,q3 = positive(+) q1 = + q2 = + q3 = - q1 = + q2= - q3= + q1= - q2= + q3= + q1= + q2= - q3= - q1,q2,q3 = negative