Two identical blocks are stacked one on top of the other. The bottom block is free to slide across a frictionless surface. The coefficient of static friction between the two blocks is 0.35. What is the maximum horizontal force that can be applied to the lower block without the upper block slipping?

To run the physics cart, the fan speed of the cart is manipulated. this is the (blank) variable. the cart accelerates due to the speed of the fan. acceleration is therefore the (blank) variable. a “constant” is a parameter that stays the same regardless of the variables. one parameter of the cart that is held constant is the (blank) .

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

Which of the following changes will result in a stronger electromagnet? a. using fewer coils of wire b. using a higher voltage c. using a shorter nail d. using a longer wire