Category: Physics

What is magnetic field how can the direction? The direction of magnetic field at a place can be determined by using a compass needle. A compass needle need place near a magnet gets deflected due to the magnetic force exerted by the magnet. The north an the needle of the compass indicates the direction of […]

How much is a 1915 Coke bottle worth? Recently, a rare Coca-Cola glass bottle from around 1915 was put up for auction with a minimum bid of $50,000. However, the Las Vegas-based auction house Morphy Auctions currently has the bottle valued between $100,000 to $150,000. Are old bottles worth money? While not all old bottles […]

What are the salient features of groups? 8 Important Features of a Group It consists of two or more persons who interact with each other. Group members have reciprocal influence on each other. In groups, people develop mutual perceptions and emotional ties with each other. What is group and its types? Groups largely define how […]

How do you correct the deviation of a compass? Turn the compass over. Insert the metal key (provided with your compass) into the adjustment screw. Turn the key until the declination indicator is the correct number of degrees east or west of 0° (15.6 degrees West in this example). What can mess up a compass? […]

Can I get good at math? Studies show being good at math is a matter of hard work just as much, if not more, than innate talent. You can become good at math simply by dedication. Take time each day to practice math until the concepts start to click for you. You should also work […]

How does a thermos keep the liquid inside of it warm? A thermos is a bottle with a double-walled container inside of it. The air between the two walls is sucked out during construction, creating a vacuum. Instead of containing some kind of heating element to keep hot things hot, a thermos is designed to […]

What is the hardest rain? Heaviest Rainfall Tropical Cyclone Denise dumped 1.144 metres (45.0 inches) at Foc-Foc on January 7 and 8, 1966, which accumulated to 1.825 metres (71.8 inches) in 24 hours. A record 48-hour rainfall of 2.467 metres (97.1 inches) was reached at Aurère on January 8 to 10, 1958. What is the […]

Is CaBr2 acidic or basic? CaBr2 is not a basic salt. It is a neutral salt as it is formed by the reaction of a strong acid and a strong base which results in formation of a salt which is neutral. The strong acid HBr is used to synthesize CaBr2. What is the pH of […]

What is the mass on each planet? Planetary Fact Sheet – Metric MERCURY EARTH Mass (1024kg) 0.330 5.97 Diameter (km) 4879 12,756 Density (kg/m3) 5427 5514 Gravity (m/s2) 3.7 9.8 How long do fart smells last? Though farts come out with varying velocities, we don’t typically smell them for about 10-15 seconds after letting them […]

Can we use both of them? “Both” implies “Both of them.” They are interchangeable in English among native speakers. They can be interchangeable but it may depend on the context. Q: Do you want David or John to join us? A: Both of them. How do you use both correctly? When we use both as […]