Category: Physics

Why does the earth switch polarity? The reversals take place when iron molecules in Earth’s spinning outer core start going in the opposite direction as other iron molecules around them. As their numbers grow, these molecules offset the magnetic field in Earth’s core. What does normal polarity mean? Normal polarity is defined as the magnetic […]

Is pivot point same as axis of rotation? is that pivot is a thing on which something turns; specifically a metal pointed pin or short shaft in machinery, such as the end of an axle or spindle while axis is (geometry) an imaginary line around which an object spins (an axis of rotation) or is […]

Is Yahweh mentioned in the Bible? In Genesis 4:26 (in the J story), it is said, “At that time people began to call on the name of yhwh.” In E, on the other hand, the name yhwh is never used until Exodus 3:14-15 when God gives Moses the name by which he is to announce […]

What planet spins the fastest? Jupiter What determines how fast a planet spins? The rotational speed is normally determined by the initial angular momentum when the planet formed, but may also be altered subsequently by large collisions (as for example the collision of the earth with another planet which gave us our moon). Why Jupiter […]

What is the size of a plane mirror to see the full view of yourself? In other words, to view an image of yourself in a plane mirror, you will need an amount of mirror equal to one-half of your height. A 6-foot tall man needs 3-feet of mirror (positioned properly) in order to view […]

What are the reasons for melting of a fuse wire? Answer. Answer: A fuse is used in a circuit to avoid overloading or short circuiting. When a current higher than the rating of the fuse flows through it, the fuse wire gets heated and melts. Why should a material of low melting point be used […]

How much is 45kg in Earth? 45 kg on Earth weighs approximately 99 pounds; on the moon, about 16 – 17 pounds. How much is 1 kg in newtons on earth? 1 kilogram or kilogram-force (kg or kgf) = 9.80665 newtons (N) = 35.2739619 ounces (oz) = 1000 grams (g) = 1000000 milligrams (mg) = […]

How far should you sit from a 75 inch TV? 15.5 feet What is the diagonal length of a TV screen? The length of diagonal of Tv screen is 100 cm. What is the diagonal length of a TV screen whose dimensions are 80 60 cm 2 points? *What is the diagonal length of a […]

Is broccoli a fruit? Vegetable Is an eggplant a berry? Fact: While it’s generally thought of as a vegetable, eggplant is actually a fruit. The eggplant, aubergine, melongene, brinjal or guinea squash is a plant of the family Solanaceae. Eggplant is grown for its usually egg-shaped fleshy fruit and is eaten as a cooked vegetable. […]

What are three properties of acids? Acids Aqueous solutions of acids are electrolytes, meaning that they conduct electrical current. Acids have a sour taste. Acids change the color of certain acid-base indicates. Acids react with active metals to yield hydrogen gas. Acids react with bases to produce a salt compound and water. How many types […]