The width of a garden is (4x-1) feet and the length is 2x feet. Find the perimeter of the garden.

Calculate the number of moles of ethane in 100 grams

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?