Marco, a physics major, and tim, a social work major, always take the school bus together. today the bus was delayed. tim is going to be late for a midterm, whereas marco does not have class for the first few hours. while walking from the bus stop, marco and tim pass a woman crying on a bench. according to darley and batson's good samaritan study, how are marco and tim likely to behave? a. marco is more likely to the woman, given that he does not have to rush to a midterm. b. tim is more likely to the woman because he will feel especially heroic her despite being in a rush. c. as a social work major, tim is more likely to the woman. d. as a physics major, marco is more likely to the woman.

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 710 n/m. it is initially at rest on an inclined plane that is at an angle of θ = 23° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.19. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. a) what is the block's initial mechanical energy? b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd question 6 options: 3000 joules 30 joules 320 joules 3200 joules

Need people build a dam to create a reservoir that supplies water a nearby city needs. describe two ways this action will likely affect the water cycle in the local environment. (5 points) worth 20 points