Category: Physics

Are heat and temperature inversely proportional? (a) The amount of heat transferred is directly proportional to the temperature change. To double the temperature change of a mass m, you need to add twice the heat. (c) The amount of heat transferred depends on the substance and its phase. How will the difference in temperature of […]

Does the brain sit in fluid? Being surrounded by CSF helps the brain float inside the skull, like a buoy in water. Because the brain is surrounded by fluid, it floats like it weighs only 2% of what it really does. If the brain did not have CSF to float in, it would sit on […]

What do you mean by eigen value and eigen function? Such an equation, where the operator, operating on a function, produces a constant times the function, is called an eigenvalue equation. The function is called an eigenfunction, and the resulting numerical value is called the eigenvalue. Eigen here is the German word meaning self or […]

Is there a ball that can bounce forever? The law of conservation of energy implies that a bouncing ball will bounce forever. Of course, it does not. When you drop it on the floor, it changes some of its energy into other forms, such as heat, each time it hits the floor. What are bouncy […]

What does it indicate if BOD is high? Higher BOD indicates more oxygen is required, which is less for oxygen-demanding species to feed on, and signifies lower water quality. Inversely, low BOD means less oxygen is being removed from water, so water is generally purer. What is COD and BOD of water? COD or Chemical […]

What is the main goal of Gestalt therapy? Gestalt therapy seeks to resolve the conflicts and ambiguities that result from the failure to integrate features of the personality. The goal of Gestalt therapy is to teach people to become aware of significant sensations within themselves and their environment so that they respond fully and reasonably […]

What happens if you drive over 50 on a spare? You should not drive over 50 mph and no more than 50 miles with a donut-type spare tire. Driving for long distances on a spare tire can potentially cause damage to other car parts, including the transmission. Is a spare tire the same as a […]

What network design would contain the scope of disruption? What network design would contain the scope of disruptions on a network should a failure occur? Explanation: One way to contain the impact of a failure on the network is to implement redundancy. What are two functions of a router choose two? What are two functions […]

Why does a spoon in a glass of water look bent? A spoon half-immersed in a glass of water appears bent at the surface of the water. We know that this is due to refraction of light, which bends the rays of light at the surface, so that the retinal image of the spoon is […]

When electric field is applied on the ends of a conductor the free electrons start moving in direction? These free electrons inside the conductor move randomly and frequently collide with heavier atoms and change their direction of motion every time. When a steady electric field is applied to the conductor, the electrons start moving towards […]