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How do you tell your girlfriend that she is gaining weihgt without offending her?
Wiki User
∙ 14y ago
Say, "Honey, you are beautiful, but I'm worried about your weight. Maybe we can go jogging together or something."
Wiki User
∙ 14y ago
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How does the position of a fulcrum affect the load?
does the positoin ef the fulcrum affect the force necessary to lift a weihgt
Where can I go to get information for post surgery weight loss?
For information of post weight loss surgery you can go to many websites.www.ncbi.nlm.nih.gov is a great source of information. thought the best for weihgt loss is diet and exersize.
How do you calculate the pressure on the base of a circular water tank of 3m2 base area and 2.5m deep if it was filled with water?
Pressure is equal to force divided by area (F/A). You already know that the area is 3m2, so now you just have to find out the force of the water on the base of the tank. First of all, you need to work out how much water there is, so you can determine it's mass and from this how heavy it is in the tank (this is the force - the waters own weight). The volume of the water tank is Area times height (V = A * h). So the volume of this water tank is 3*2 = 6m3. Now, every m3 of water has a mass of 1 kg, so in this tank we have 6 * 1kg = 6kg of water. The weihgt of the water (force towards ground) is its mass times the acceleration due to gravity (what's holding your feet to the ground), as given by Newton's second law. So the water's weight (or force on the bottom of the tank) is 6 * 9.8 (acceleration due to gravity = 9.8 ms2) = 58.8 Newtons. And now we work out pressure... Pressure = force/area = 58.8 N/3m2 = 19.6 N/m2 Hope that helps
What is an example of decrease?
This is a trick question, because in the world as we know it, entropy never decreases, since the chance of this happening approaches and infinitely small fraction. To answer the question though: Take any closed system of events that you've observed, and rewind the events as if you were "going back in time". Example: An egg the has splattered all of a sudden recombines off the floor and becomes a whole egg again. Some scientists believe that the last time entropy ever decreased in our universe was right before the big bang. Since this chance occurrence, entropy throughout the whole universe has been steadily increasing. My addition (person 2) - However, entropy CAN decrease locally, just not universally. Essentially entropy rests on the fact that work ultimately comes from a flow of heat energy from high to low, eventually balancing out. Once all the heat energy is uniform in the universe, we will experience "heat death" at which point no work will be able to be done. However, in systems WITHIN the closed system of the universe, entropy CAN be decreased. Freezing an ice cube, if you follow the entropy equation which I don't have with me, is one example of this. The cost of this local decrease in entropy is a universal increase in entropy from the heat released that is greater than the local decrease in entropy, thus the second law is not violated. Another example is biological growth. We humans develop from a single cell into a vastly complex arrangement of cells, but at the same time we produce heat that increases universal entropy more than our bodies decrease it.
