Category: Physics

What is the radius of a 2 inch EMT 90? EMT 90° Elbows Trade Size Metric Designator Radius (A)* 2 53 241 2 1/2 63 267 3 78 330 3 1/2 91 381 What is the multiplier for 45 degree bends? The errors in distance between bends for a 30 inch high offset varied from […]

What is acceleration at the highest point? At a projectile’s highest point, its acceleration is zero. What is acceleration at maximum height? The acceleration is always −9.8m/s as long as the ball is in the air, and the velocity at the top is zero. Why is acceleration at 0 highest? Answer: 0 m/s. The instantaneous […]

Can you kill a fly by slapping it? I’ve killed a few flies this way. Just make sure you smack it hard enough so that when it reaches the ground it impacts fairly sharply. It lands on the ground and is stunned for as long as 5 seconds before it gets up and flies away. […]

Do transistors amplify voltage? A transistor can amplify current and it can amplify voltage and it can do BOTH at the same time. A transistor can also amplify the voltage is “sees” on the base. It does this in common-emitter mode where the emitter is connected to the 0v rail and the collector has a […]

Are extension cords AC or DC? DC power supply cords are available in different lengths and can have either two or three prongs. A DC power extension cord is used to extend the length of a standard DC power cable. DC power extension cords have a plug on one end and one or more sockets […]

What are the 5 natural elements? Everything in nature is made up of five basic elements: earth, water, fire, air, and space. Knowledge of the five elements allows the yogi to understand the laws of nature and to use yoga to attain greater health, power, knowledge, wisdom and happiness. This arises out of deep intuition […]

Can 0 degrees freeze water? We’ve all been taught that water freezes at 32 degrees Fahrenheit, 0 degrees Celsius, 273.15 Kelvin. Scientists have found liquid water as cold as -40 degrees F in clouds and even cooled water down to -42 degrees F in the lab. How cold is hot ice? Although it looks like […]

Are Airboats noisy? But according to the preliminary draft of the scientific study, even an airboat fitted with a muffler exceeds 90 decibels at open throttle. The reason is that as power increases, the propeller makes more noise than the motor. “I think everybody understands there has to be some kind of muffling system,” Huffman […]

Can a RTG power a house? Not really. The purpose of an rtg is normatively to provide heat in the form of radioactive decay (“decay heat”) and insodoing create thrust/electricity. How much plutonium is in an RTG? Each RTG had a total weight of 37.7 kg including about 4.5 kg of Pu-238. It uses 24 […]

What source of energy does the body use first? Carbohydrates are the main energy source of the human diet. The metabolic disposal of dietary carbohydrates is direct oxidation in various tissues, glycogen synthesis (in liver and muscles), and hepatic de novo lipogenesis. What are the main sources of energy body? Carbohydrates, such as sugar and […]