you are lowering two boxes, one on top of the other, down the ramp shown in the figure (figure 1) by pulling on a rope parallel to the surface of the ramp. both boxes move together at a constant speed of 16.0 cm/s . the coefficient of kinetic friction between the ramp and the lower box is 0.466, and the coefficient of static friction between the two boxes is 0.801.

Abag contains even and odd numbered balls in the ratio of 3: 7, respectively. for each of the following, what is the probability of drawing an even-numbered ball? the total number of balls is 240 and 30 of the odd-numbered balls are renumbered by multiplying the numbers by 4.

Why are gold and platinum used for jewelry

Spider crabs live in the shallow regions of the ocean floor. algae tend to grow on the surface of spider crabs. the algae provide the crabs protection from predators by camouflaging them. the spider crabs give the algae shelter. what does this description suggest? 1. the algae are parasites of the spider crabs. 2. the algae and the spider crabs have a mutualistic relationship. 3. the spider crabs are commensals, and the algae are parasites. 4. the spider crabs benefit from the algae living on them. 5. the spider crabs are parasites of the algae.