Category: Physics

How is sunlight the primary source of energy for your own life? 3.1 The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers such as plants, algae, and cyanobacteria use the energy from sunlight to make organic matter from carbon dioxide and water. This establishes […]

Is the mains AC or DC? AC stands for ‘alternating current’ which means the current constantly changes direction. Mains electricity is an AC supply, and the UK mains supply is about 230 volts. It has a frequency of 50Hz (50 hertz), which means it changes direction and back again 50 times a second. What is […]

What is the shortest wavelength of radiation? Gamma Rays What is the shortest wavelength color? violet light What colors do primary colors make? Color Basics Three Primary Colors (Ps): Red, Yellow, Blue. Three Secondary Colors (S’): Orange, Green, Violet. Six Tertiary Colors (Ts): Red-Orange, Yellow-Orange, Yellow-Green, Blue-Green, Blue-Violet, Red-Violet, which are formed by mixing a […]

At what temperature will outside faucets freeze? 20 degrees How do I stop my outside faucet from freezing? Cover the exterior faucet with an insulated slip-on cover. This will prevent any remaining water from freezing. Exterior pipes should be wrapped with insulation tubing, which can be found at your local hardware store. Do not wrap […]

Why do waves slow down in shallow water? In shallower water near the coast, waves slow down because of the force exerted on them by the seabed. If a wave is approaching the coast at an angle, the nearshore part of the wave slows more than the offshore part of the wave (because it’s in […]

How can I strengthen my immune system? Healthy ways to strengthen your immune system Don’t smoke. Eat a diet high in fruits and vegetables. Exercise regularly. Maintain a healthy weight. If you drink alcohol, drink only in moderation. Get adequate sleep. Take steps to avoid infection, such as washing your hands frequently and cooking meats […]

What is the best solvent for carbon disulfide? Carbon disulfide is a colorless liquid, with an chloroform like smell when pure. Impure CS2 has a yellowish color and has a putrid smell. It is insoluble in water, but soluble in many organic solvents, such as benzene, ethanol, diethyl ether, carbon tetrachloride, chloroform. What is the […]

What swim goggles do Navy SEALs use? We like these simple goggles – the Aqua Sphere Goggle . These are easy to slip on and knock out a 2k swim in the pool with fins or to get out in the ocean and get some distance. The glasses will serve their primary purpose, to keep […]

What is an example of the Fifth Amendment? During a criminal trial, the Fifth Amendment pertains to more individuals than just the defendant. For example, a witness may refuse to testify if doing so would have him or her self-incriminate, even if the criminal conduct in question is not related to the actual case. Why […]

What is the main magnetic field? The Main Magnetic Field originates from a dynamo process in the fluid outer core of the Earth. It strongly dominates over the various other contributions to the geomagnetic field, accounting for over 95% of the field strength observed at the Earth’s surface. What is the strength of an MRI […]