The force F = (6.76 N)i + (4.2 N)j acts on a particle as it moves first along the x axis from x = 3.33 m to x = 7.32 m, then parallel to the y axis from y = 2.56 m to y = 9.12 m. What is the work done, in joules, by the force?

A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?

How is the gravitational force related to the distance between two objects?

Use the profile illustrated for problem (1). assume that the layer of silty sand fill (sm) is placed over the entire site. estimate the thickness of the fill (h - in feet) that will cause the effective vertical stress at the center of the clay layer to increase by 517.5 pounds per square foot.