Hello, can you please solve these questions and show your work too. I don't really know how to solve these problems and would love if you showed every step (including equation). Thank you!

18. Answer the following question(s). showing your calculations. A IS.0~kg model plane ies horizontally at a constant speed of 12.5 mils. a. Calculate its kinetic energy. b. The plane goes into a dive and levels off 20.4 m closer to Earth. How much potential energy does it lose during the dive? Assume no additional drag. c. How much kinetic energy does the plane gain during the dive? d. What is its new kinetic energy? c. What is its new horizontal velocity? -______________________________ WORK = ENERGY AnSWer the following question(s). showing your calculations. 19. 20. 21. 22. A force of 21.0 N pushes a \"LS-kg cart, initially at rest, a distance of 2.3 or along a frictionless surface. 3. Find the work done on the can. b. What is its change in kinetic energy? c. What is the cart's final velocity? A bike and rider, 88.0-kg combined mass. are traveling at 4.3 rru's. A constant force of 441 N is applied by brakes in stopping the bike. What braking distance is needed? A 0.17-kg ball is placed on a compressed spring on the oor. The spring exerts an average force of 2.1 N through adistance of 11 cm as it shoots the ball upward. How high will the ball travel above the released spring? In an electronics factory, small cabinets slide down a 23.0\" incline a distance of 15.0 1n to reach the next assembly stage. The cabinets have a mass 10.0 kg each. a. Calculate the speed each cabinet would acquire if the incline were frictionless. b. What kinetic energy would a cabinet have under such circumstances? SHORT ANSWER --_.___.________ -_..._______'________ ..__._._.. . Answer the following question(s), using complete sentences. 23. Under what conditions will a 0.040-kg marble 24. and a 2.80~kg rock have the same gravitational potential energy other than zero? A block of wood rests on a frictionless surface and is attached to a spring. as shown below. When the spring is neither elongated nor compressed, the center of the block of wood is used as the reference point for the elastic potential energy of the block-and-spring system. The spring is then compressed to the left and released. Describe the changes in the mechanical energy, kinetic energy. and elastic potential energy of the system between the time the spring is released and when it reaches its maximum elongation. "1'11 . . Hill BONUS Answer the following questiori(s), showing your calculations. 25. 26. A "RESkg car is traveling at 5.5 mfs when a force acts on it for 8.6 s, changing its velocity to 10.8 mfs. a. What is the change in kinetic energy of the car? b. How far did the car move while the force acted? c. How large is the force? An average force of 20.9 N is used to pull a 0.38- kg rock, stretching a sling shot-13 cm. The rock is shot downward from a bridge 16 m above a stream. What will be the velocity of the rock ju. before it enters the water