Ok plz help this is my entrance exam question for physics in grade 9 (yes i am moving to a new school again) calculate the POWER of a man who pushes a box with a force of 40 n to move it at a distance of 3 meters in 4 secs plz help

James is trying to prove newton's 2nd law of motion. he tries to move four different objects with different masses, shapes, and sizes from point a to point b. the objects are a toy car, a car, a refrigerator, and a kitchen table. after some experimentation, he finds that force is dependent on the mass of the object, rather than it's size or shape. the object that takes the most force to move is the

Which branches of natural science include the study of an organism that lived 10 million years ago

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.