What mass of solute is needed to make 45.0 g of a 3.5% solution?​

Based on the position vs. time graph which velocity vs. time graph would correspond to the data

Which part of a feedback mechanism is able to monitor the conditions outside of cells and usually uses nerve cells to relay this information to an intergrating center

Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole