Two block with masses m1 and m2, as shown, are connected by a light string. A second string is also connected to the block of mass m2. The string is used to pull the blocks up a ramp with tension F directed parallel to the ramp. The ramp is inclined at an angle θ to the horizontal, as shown in the diagram. Friction is negligible. Derive an equation for the acceleration of the two blocks in terms of m1, m2, F, and θ, assuming that the strings do not stretch.

Cathy is pedaling down a steep hill on her bicycle and wants to be able to coast up the next hill, which is 25 meters high, without pedaling. cathy and her bicycle have a mass of 75 kg. assuming her bicycle is 100% efficient, what would her speed have to be?

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine

Isobars are lines of constant or equal pressure on a weather map. they can be used to find areas of low or high pressure over a broad area, and they can tell us how intense the system may be. on weather maps, you may have noticed areas that have a large l or h over a region with lines circling around them. the l stands for low pressure and h stands for high pressure. the lines circling them are isobars. check out the pressure system and isobars over georgia and florida. what is the present weather in this area ? a) clear and sunny b) cold and cloudy c) changing weather d) lots of precipitation