How far back in time can we see? But 13.8 billion light years is far too small to be the right answer. In actuality, we can see for 46 billion light years in all directions, for a total diameter of 92 billion light years. What is beyond the universe? These 93 some-odd billion light-years contain […]
What are the steps to conserve natural resources?
What are the steps to conserve natural resources? Below are 40+ ways to save and conserve natural resources. Use of alternative sources of power such as solar and wind energy. Plant trees to prevent soil erosion. Practicing of judicious ways to conserve water in our homes. Use pipelines to transport oil. Growing of vegetation in […]
Does all the ice melt calorimetry?
Does all the ice melt calorimetry? Once all the ice has melted, the temperature of the liquid water rises, absorbing heat at a new constant rate. At 100oC the water begins to boil….Heat and Change in Physical State. Substance Mercury Melting Point (oC) –38.9 ΔHfus, (J/g) 11.8 Boiling Point (oC) 357 ΔHvap (J/g) 272 When […]
What does access only mean?
What does access only mean? An ‘access-only’ road or street is that has a ban on motor traffic using it, except for access. The intention is to allow cycles (and people walking) to use the road as a through-route, while limiting motor traffic to just those vehicles accessing properties. What does this sign mean at […]
What is the direction of magnetic field in a bar magnet?
What is the direction of magnetic field in a bar magnet? Magnetic field lines are defined to have the direction that a small compass points when placed at a location. (a) If small compasses are used to map the magnetic field around a bar magnet, they will point in the directions shown: away from the […]
Is it better to drive fast or slow through water?
Why do divers exhale when surfacing?
Why do divers exhale when surfacing? As the diver ascends, the air in the lungs expands as surrounding water pressure decreases. Exhaling allows excess volume to escape from the lungs, and by exhaling at a suitable rate the diver can continue exhaling throughout the ascent and still have air in his or her lungs at […]
Which system will lift the weight most easily?
Which system will lift the weight most easily? pulley system Where do you see pulleys in everyday life? Examples of Pulleys in Everyday Life Elevators. Elevators work via a powerful electronic pulley system. Wells. Exercise Machines. Construction Pulleys. Theater Systems. What are examples of pulleys in your house? Examples of pulleys that can be found […]
How do I get work ethic?
How do I get work ethic? Here are some things you can do now to develop a good work ethic. Practice punctuality. Develop the habit of being on time or early for all appointments. Develop professionalism. Professionalism goes beyond a crisp white shirt and tie. Cultivate self-discipline. Use time wisely. Stay balanced. What are good […]