The weight of the block in the drawing is 88.9N. The coefficient of static friction between the block and the verticalwall is 0.560. What minimum force F is required to: a. Prevent the block from sliding down the wall.
b. Start the block moving up the wall?

If the new moon happens on january 15th, what shape will it be on february 6th?

Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air