In a given chemical reaction, the energy of the products is less than the energy of the reactants. which statement is true for this chemical reaction?
energy is absorbed in the reaction.
energy is released in the reaction.
there is no transfer of energy in the reaction.
energy is lost in the reaction.

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

You hang a book bag on a spring scale and place the bag on a platform scale so that the platform scale reads 23.7n and the spring scale reads 13.8n. what is the magnitude of the force that earth exerts on the bag?

Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 – t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.