Category: Physics

Why are electric fields uniforms? The force on the charge is the same no matter where the charge is located between the plates. This is because the electric field is uniform between the plates. What happens if the field is non uniform? ➡️Torque is non zero when dipole is placed in uniform as well as […]

How much gold is in a cell phone? There are 0.034 grams of gold in each cell phone, according to the U.S. Geological Survey. That’s the equivalent of 0.001 troy ounces, worth about $1.82 at today’s prices. There are also 16 grams of copper, worth about 12 cents, 0.35 grams of silver, worth 36 cents, […]

What is the power of white noise? White noise is a CT stochastic process whose PSD is constant. Signal power is the integral of PSD over all frequency space. Therefore the power of white noise is infinite. No real physical process may have infinite signal power. What is an example of white noise? White noise […]

What kills the pasteurization process? This process was named “pasteurization” after its brilliant designer. Pasteurization involves heating liquids at high temperatures for short amounts of time. Pasteurization kills harmful microbes in milk without affecting the taste or nutritional value (sterilization= all bacteria are destroyed). Which bacteria is not killed by pasteurization? The pasteurization technology, applied […]

How do you reset a 12 volt battery? Mix ¼ Epsom salt with ¾ warm distilled water. You need a quart of this mixture for one cell. Pour the mixture into the cells and shake it around before letting it sit. Connect the charger for the battery and charge for 12 hours. Can dead batteries […]

Do mirrors enlarge things? Reflection from a Plane Mirror The image distance always equals the object distance. The size of the image is the same as the object (the mirror does not magnify the image). Does mirror make room look bigger? Use mirrors If you’ve ever wondered, “Do mirrors make a room look bigger?” the […]

¿Cómo era Juanito en el país sin punta? Juanito Pierdedía era un gran viajero. Viaja que te viaja, llegó una vez a un pueblo en que las esquinas de las casas eran redondas y los techos no terminaban en punta, sino en una suave curva. A lo largo de la calle corría un seto de […]

How can I settle my cats stomach? Tips to Soothe Your Cat’s Upset Stomach Keep track of what they’ve been eating. If you change their food, do it gradually. Ask for a veterinarian’s recommendation. Mix with rice for a quicker transition. Don’t feed table scraps or leftovers. Signs that it may be more than the […]

How often do you support MC cable? According to NEC Article 330.30, MC cable must be supported and secured at intervals of 6 feet or less (unless routed through a framing member) and cables containing four or fewer conductors sized no larger than 10 AWG must be secured within 12 inches of every termination. What […]

What is the equation for the change in momentum? The impulse experienced by the object equals the change in momentum of the object. In equation form, F • t = m • Δ v. What happens in an inelastic collision? An inelastic collision is a collision in which there is a loss of kinetic energy. […]