The force pulling a truck down hill is 2000 N. What is the amount of static friction acting on the truck it the truck does not move?

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

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

Atomic nuclei of almost all elements consist of