A125 g block of an unknown substance with a temperature of 90.0°c is placed in a styrofoam cup containing 0.326 kg of water (c 4190 j/kg.°c) at 20.0 °c. the system reaches an equilibrium temperature of 22.4 °c. what is the specific heat, c, of the unknown substance if the heat capacity of the cup is neglected?

Aregular polygon has angkes of size 150° each.how many side has the polygon

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?

Answer asap 50 points which of the following illustrates how a venus fly trap senses that an insect has landed in its open leaves? 1. using tiny hairs, the leaves sense a change in light. 2. using tiny hairs, the leaves taste a chemical. 3. using tiny hairs, the leaves detect a touch. 4. using tiny hairs, the leaves sense a change in water levels.