Alocomotive is pulling an empty freight car with a constant acceleration on a horizontal surface. the mass
of the locomotive is five times the mass of the car. which statement is true about the force applied by the
car on the locomotive?
a. 5 times greater than the force of the locomotive on the car.
b. 5 times less than the force of the locomotive on the car.
c. equal to the force of the locomotive on the car.
d. opposite in direction to the force of the locomotive on the car.
e. the same direction as the force of the locomotive on the car.

i know the answers are c and d can someone explain why

Aray diagram for a refracted light day is shown. what does the dashed line represent

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

1. when conducting a test on what kind of music increases the growth of plants, all of the following would fail to meet to fair test standard except (1 point) using different kinds of plants. giving some plants more water than others. exposing the plants to different types of music. using nutrient-rich soil for one and lesser soil for others. 2. engineering uses scientific thinking to solve real-world problems. (1 point) true false 3. what does it mean to test a hypothesis? (1 point) pass a quiz on other scientists’ results analyze only the results from scientific sources not make assumptions about how an experiment will turn out see if the results of an experiment are what the scientist predicted