Category: Physics

What is the relationship between wavelength and speed? Speed = Wavelength x Wave Frequency. In this equation, wavelength is measured in meters and frequency is measured in hertz (Hz), or number of waves per second. Therefore, wave speed is given in meters per second, which is the SI unit for speed. What is the longest […]

What are the primary differences between products and services? A product is a tangible item that is put on the market for acquisition, attention, or consumption, while a service is an intangible item, which arises from the output of one or more individuals. What are the key differences between production of goods and delivery of […]

What is the 2 fastest thing in the world? List of animals by speed Rank Animal Maximum speed 1 Peregrine falcon 389 km/h (242 mph) 108 m/s (354 ft/s) 2 Golden eagle 240–320 km/h (150–200 mph) 67–89 m/s (220–293 ft/s) 3 White-throated needletail swift 169 km/h (105 mph) 4 Eurasian hobby 160 km/h (100 mph) […]

Why contactor is used in motor? A contactor is a large relay, usually used to switch current to an electric motor or another high-power load. Large electric motors can be protected from overcurrent damage through the use of overload heaters and overload contacts. What is difference between circuit breaker and contactor? A contactor is an […]

Why is heavy lifting better? Heavy weights increase the power and strength of your muscles without significantly adding bulk or size, especially for women. This means that everyday physical tasks get easier, and consistent training will increase the amount of weight you can lift. You’ll look stronger, too. What is the most effective way to […]

How do you calculate the voltage after a resistor? Ohm’s Law states that V=I*R, where V is voltage, I is current and R is resistance. In a series circuit, the voltage drop across each resistor will be directly proportional to the size of the resistor. In a parallel circuit, the voltage drop across each resistor […]

Are eggs bad if they float in boiling water? If the egg sinks or stays at the bottom, it is still fresh. An older egg will either stand on its end or float. The float test works because air builds up inside the egg as it ages, and this increases its buoyancy. However, an egg […]

What is a balanced force in basketball? One balanced force in basketball is standing and shooting a freethrow,because you aren’t moving and no outside force is acting on you. But, an unbalanced force is running down the court and jump-stopping, because your momentum is trying to keep moving forward, but you are trying to stop. […]

Is there a translucent paint? Any color and virtually any type of paint can be made transparent and used for a variety of decorative and faux effects. Mixing paint with faux glazing medium or paint additives allows you to use the paint to give it a translucent, transparent look that doesn’t drip or run. What […]

Can you drink bottled water left in hot car? Some researchers who study plastics recommend against drinking water from plastic bottles that have been sitting in hot places for a long time — such as a car sizzling in the sun — concerned that the heat could help chemicals from the plastic leach into the […]