Category: Physics

Which is more dangerous CT scan or MRI? A significant difference between CT and MRI scans is that CT scans expose patients to ionizing radiation, while an MRI does not. The amount of radiation used during this test is higher than the amount used in an x-ray. Therefore, a CT scan slightly increases your risk […]

What is velocity vs speed? Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object’s movement. Put another way, speed is a scalar value, while velocity is a vector. What is speed and agility? Speed is defined as the ability to […]

How do glasses use refraction? Lenses serve to refract light at each boundary. As a ray of light enters a lens, it is refracted; and as the same ray of light exits the lens, it is refracted again. Because of the special geometric shape of a lens, the light rays are refracted such that they […]

Does the rock cycle always go in order? Note that the rock cycle doesn’t always have to work in this order; sometimes igneous rocks can be buried and metamorphosed, skipping the sedimentary rock phase, and sometimes sedimentary and metamorphic rocks can be uplifted and eroded to form new sedimentary rocks. … Can rocks cry out? […]

How do I deal with a breakup if I still love him? How To Deal With Breaking Up With Someone You Still Love Accept that love isn’t enough. Realize it’s not your fault. Sponsored: The best dating/relationships advice on the web. Think about what’s best for you. Build some support first. Set aside some post-breakup […]

What does baking soda and water do for your stomach? Baking Soda Dos. You can use it to: Calm indigestion: Add 1/4 teaspoon of baking soda to a glass of water to zap acid in your stomach. But acid doesn’t cause all kinds of indigestion, so if your symptoms don’t improve after 2 weeks, call […]

What do we mean by equilibrium? Equilibrium is the state in which market supply and demand balance each other, and as a result prices become stable. The balancing effect of supply and demand results in a state of equilibrium. What is the other name for equilibrium theory? General equilibrium theory, or Walrasian general equilibrium, attempts […]

What is Climate Change Wiki? Climate change is any significant long-term change in the weather of a region (or the whole Earth) over a significant period of time. Climate change is about abnormal variations to the climate, and the effects of these variations on other parts of the Earth. What are the effects of climate […]

How fast can Usain Bolt run the mile? A mile is 1,609.34 meters, and if Bolt could keep up his Olympic pace — 9.8 seconds per hundred meters on Sunday — he’d be able to cover it in 2 minutes, 37.7 seconds. His world record 100-meter dash stands at 9.58 seconds, or 27.73 miles per […]

What is the difference between health fitness and skills related fitness? Skill-related fitness refers to your ability to perform physical tasks efficiently as it relates to a particular sport, and health-related fitness relates to your day-to-day activities. What is the difference between health and skill related fitness? Health-related fitness is characterized by moderate to vigorous […]