20 points and brainliest if your answer is correct!

you are designing an experiment to test the efficiency of different bikes. what simple machines to make this complex machine?

a. wedge, pulley, and wheel and axle

b. wedge, screw and wheel and axle

c. screw, inclined plane and wheel and axle

d. screw, lever, and wheel and axle

Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential

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

Calculate the minimum energy required to remove one proton from the nucleus 126c. this is called the proton-removal energy. (hint: find the difference between the mass of a 126c nucleus and the mass of a proton plus the mass of the nucleus formed when a proton is removed from 126c.) express your answer with the appropriate units. emin e m i n = nothing nothing request answer part b how does the proton-removal energy for 126c compare to the binding energy per nucleon for 126c, calculated using eb=(zmh+nmn−azm)c2?