Category: Physics

Why does mass not affect pendulum period? The mass of a pendulum’s bob does not affect the period. As mass increases, so does the force on the pendulum, but acceleration remains the same. (It is due to the effect of gravity.) Because acceleration remains the same, so does the time over which the acceleration occurs. […]

What is the relation between magnetic field and current and distance? The magnetic field at point P due to the element dl is found to be proportional to the current in the wire, and the length of dl and is inversely proportional to the square of the distance R . How the strength of the […]

What are the main types of star clusters? The three basic types of clusters astronomers have discovered are globular clusters, open clusters, and stellar associations. How do you determine a star cluster? By determining the mass of the main-sequence turnoff stars, we get the age of the cluster. The cluster age equals the main-sequence lifetime […]

Can I do 500 push ups a day? Just because you can do a lot of push-ups, doesn’t mean you should be trying to do so many. The slower you take it, the better your muscles will be. Doing 500 pushups in a day can cause muscle soreness and can even injure your muscles. How […]

How do you write pounds in short form? Abbreviation ‘lb’ for pound. What is the meaning of QT? quiet What is the C Money symbol? $ What does C stand for in quantity? Coulomb, unit of electric charge in the metre-kilogram-second-ampere system, the basis of the SI system of physical units. It is abbreviated as […]

How much nitrogen is in the air? Air is mostly gas The air in Earth’s atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Why did oxygen levels decrease millions of years ago? Major mass extinction events at 450, 370, 250 and 200 million years ago corresponded with dramatic drops in […]

Can u die from static electricity? It is dangerous when you touch something with a large electric charge on it. The charge will flow through your body causing an electric shock. This could cause burns or even stop your heart. A person could die from an electric shock. Can static kill a motherboard? Electrostatic discharge […]

Why does wind feel cold? It can certainly feel colder when the wind is blowing. Wind helps remove the warm air immediately next to the skin and this causes a feeling of it being colder. The wind chill was developed because of the feeling that it gets colder when the wind is stronger due to […]

What emotion is associated with Orange? Orange calls to mind feelings of excitement, enthusiasm, and warmth. Orange is often used to draw attention, such as in traffic signs and advertising. Orange is energetic, which is perhaps why many sports teams use orange in their uniforms, mascots, and branding. How does the color blue make you […]

What is characterized by compulsive eating? What is Bulimia Nervosa? Bulimia Nervosa is an eating disorder characterized by recurrent episodes of binge eating followed by self-induced vomiting or purging through excessive exercise, or use of laxatives or diuretics. Signs and symptoms of Bulimia Nervosa are: Fear of inability to stop eating voluntarily. What eating disorder […]