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?

An architect plans to use solar energy to heat the next house he designs. what principle of absorption and infrared energy can be applied to the design of the new house? how could she apply to those principals?

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.

Which statement best explains why the overall charge on an atom is zero?