Estimate the change in the thermal energy of water in a pond with a mass of 1,000 kg and a specific heat of 4,200 J / (kg- "C) if the water cools by 1 ° C.

Janelle made a hypothesis bout the uneven temperatures inside her house during winter. she believes that 50% of the ducts are blocked and she plans to investigate. if she wants to prove her hypothesis using scientific processes what should she do next?

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k