Category: Physics

Why is electricity so cheap in Iceland? This is one of the plants that enables Iceland to produce 100 per cent of its grid electricity from renewable sources. It’s all either geothermal or hydro. Electricity prices are low in Iceland, especially for the aluminum smelting industry. Can you drink the water in Iceland? Yes, it […]

Is it safe to breathe in ozone? When inhaled, ozone can damage the lungs. Relatively low amounts can cause chest pain, coughing, shortness of breath and throat irritation. Ozone may also worsen chronic respiratory diseases such as asthma and compromise the ability of the body to fight respiratory infections. Can ozone cure Lyme disease? Ozone […]

What is the force of a car crash? force equals mass times acceleration. In this case, the acceleration is (v – 0)/t, where t is whatever time it takes car A to come to a stop. The car exerts this force in the direction of the wall, but the wall, which is static and unbreakable, […]

Is a 5 cm tumor big? The smallest lesion that can be felt by hand is typically 1.5 to 2 centimeters (about 1/2 to 3/4 inch) in diameter. Sometimes tumors that are 5 centimeters (about 2 inches) — or even larger — can be found in the breast. What stage is a 5 cm tumor? […]

How do they measure weight in England? Weight measurements in the UK, US, Australia and New Zealand In the US, they use pounds (lbs) for their weight while Australia and New Zealand use kilograms. So, a man weighing 90kg would give his weight as 198 lbs in the US and just over 14 stone in […]

How can I double my money in one year? Here are some options to double your money: Tax-free Bonds. Initially tax- free bonds were issued only in specific periods. Kisan Vikas Patra (KVP) Corporate Deposits/Non-Convertible Debentures (NCD) National Savings Certificates. Bank Fixed Deposits. Public Provident Fund (PPF) Mutual Funds (MFs) Gold ETFs. What to do […]

What do energy pyramids show? An energy pyramid shows the distribution of energy among trophic levels. Producers use energy from sunlight to make food. In other words, an energy pyramid shows how much energy is available at each trophic level. Energy is lost at each trophic level of a food chain. How does energy flow […]

Are crabs primary consumers? Primary consumers (herbivores such as some fish, shellfish, filter feeders, etc.), convert the energy from primary producers into biomass through consumption. Secondary consumers (usually carnivores such as crabs, birds, small fish, etc.) prey upon the primary consumers for their energy. What are producers in the abyssal zone? In the euphotic or […]

Is magnetic field inside a toroid zero? The magnetic field lines inside the toroid are concentric circles. The magnetic field is homogeneous inside the toroid and zero outside the toroid. We asses the direction of the magnetic B-field by the right-hand rule. Why is there no magnetic field outside a toroid? After applying Ampere’s Law, […]

What happens to the speed of a body when a force is applied? Answer. In the simplest case, a force applied to an object at rest causes it to accelerate in the direction of the force. The body might speed up, slow down or change direction, after which, the body will continue moving at a […]