Question

Answer the questions 1. Write the Energy conversion that takes place in hydro power plant. 2. State joule law of heating 3. Describe in brief the structure and function of placenta .

Answer 1

Answer:

Explanation:

1.Hydropower plants capture the energy of falling water to generate electricity. A turbine converts the kinetic energy of falling water into mechanical energy. Then a generator converts the mechanical energy from the turbine into electrical energy.

2.Joule's law of heating states that heat produced in joules when a current of I amperes flows in a wire of resistance R ohms for time t seconds is given by H = I 2Rt.

3.The placenta is the composite structure of embryonic and maternal tissues that supply nutrients to the developing embryo. The placenta serves three main functions: Attach the fetus to the uterine wall. ... Allow the fetus to transfer waste products to the mother's blood.