Answer number 5-9. 5. As the object moves from point A to point D across the surface, the sum of its gravitationalpotential and kinetic energiesa.Increasesb. Increases and then Decreasesc. Decreases onlyd. Remains the same6. The object will have a minimum gravitational potential energy at pointa.Aс. Сb. Вd. Dipo7.The object's kinetic energy at point C is less than its kinetic energy at pointa. A onlyс. В onlyb. A and Dd. B and D8. Mikka, a skier has a mass of 51.2 kg. She is moving with a speed of 20.4 m/s at a height of 40meters above the ground. Determine the total mechanical energy of Mikka.20794.096 Jc. 30754.096Ja.d. 30744.576Jb. 30725.096 JCalculate the dot product of two vectors with magnitudes of 7 and 11 and an angle of 22.6°.C. 71.099.а.17.56d. 74.09b. 71.01 5-8. Use the figure below to answer items 5 to 8.D

Answered: Image /qna-images/answer/8a080570-ee05-43b4-bf30-750a14f9bfb0.jpg

As the object moves from point A to point D across the surface, the sum of its gravitational potential and kinetic energies a. Increases b. Increases and then Decreases c. Decreases only d. Remains the same 6. The object will have a minimum gravitational potential energy at point a. A wc. C b. В d. D upo 7. The object's kinetic energy at point C is less than its kinetic energy at point a. A only b. A and D с. В only d. B and D B. Mikka, a skier has a mass of 51.2 kg. She is moving with a speed of 20.4 m/s at a height of 40 meters above the ground. Determine the total mechanical energy of Mikka. 20794.096 J C. 30754.096 J а. d. 30744.576J b. 30725.096 J Calculate the dot product of two vectors with magnitudes of 7 and 11 and an angle of 22.6°. c. 71.09 a. 17.56 d. 74.09 b. 71.01 5.