Category: Physics

How breccia is formed? Breccia forms where broken, angular fragments of rock or mineral debris accumulate. One of the most common locations for breccia formation is at the base of an outcrop where mechanical weathering debris accumulates. Another is in stream deposits a short distance from the outcrop or on an alluvial fan. How hard […]

When a metal jar lid is difficult to remove from a glass jar you can run hot water on the lid and then it is easier to open Why? The metal lid will expand much quicker than the glass jar that you’ve got, so that will expand and open up and then you can loosen […]

What does current flow mean? Current flow basically means the flow of electric charges with respect to time. In an electric circuit, when the electric charge is flowing in one direction, the current will flow in the opposite direction. From Ohm’s law, the current can be defined as the voltage through the circuit per unit […]

What is the main distinction between primary and secondary source? Primary sources can be described as those sources that are closest to the origin of the information. Secondary sources often use generalizations, analysis, interpretation, and synthesis of primary sources. Examples of secondary sources include textbooks, articles, and reference books. Which of the following is a […]

What foods can reverse diabetes? The 16 Best Foods to Control Diabetes Fatty Fish. Some people consider fatty fish to be one of the healthiest foods on the planet. Leafy Greens. Leafy green vegetables are extremely nutritious and low in calories. Avocados. Eggs. Chia Seeds. Beans. Greek Yogurt. Nuts. What is the main cause of […]

How high can you throw a ping pong ball? 10.96 m What is the highest someone can throw a baseball? Gorbous holds the current world record for longest throw of a baseball, 135.89m (445 feet, 10 inches). The feat took place on August 1, 1957, while he was playing for the Omaha Cardinals of the […]

Is Pi a Radian? Radians are not measured in Pi, they are just a number. A radian is defined as the ratio between the length of a circular arc and the radius of the circle. For example if the arc goes around 360 degrees (a full circle), the radians are 2PiR divided by R. The […]

Is sweating positive or negative feedback? Another example of negative feedback occurs when your body’s temperature begins to rise and a negative feedback response works to counteract and stop the rise in temperature. Sweating is a good example of negative feedback. Is body temperature positive or negative feedback? (b) Body temperature is regulated by negative […]

Do lights in equal distance away from you have the same brightness? The intensity or brightness of light as a function of the distance from the light source follows an inverse square relationship. Notice that as the distance increases, the light must spread out over a larger surface and the surface brightness decreases in accordance […]

How low can you set thermostat in winter? Wondering what temperature to set your thermostat when you’re away during winter? According to the U.S. Department of Energy, “When leaving on vacation — usually more than three days — set your thermostat to 50-55 degrees Farenheit in the winter to prevent against freezing pipes.” When should […]