Category: Physics

Is heat from a fire radiation or convection? The thermal radiation from the fire spreads out in all directions and is able to reach you. This thermal radiation is mostly in the form of infrared waves and visible light. In contrast, the campfire heat transferred via convection shoots straight up into the sky and never […]

How heavy was the iceberg that hit the Titanic? 1.5m tonnes Did Titanic captain ignore the warnings? Mr Cooper said: “Smith certainly did not ignore ice warnings per se, and he made sure the ones that reached the bridge were all posted in the chart room, though he did have to retrieve one that he […]

What triggers platelet aggregation? Substances such as collagen, ristocetin, arachidonic acid, adenosine 5′-diphosphate, epinephrine, and thrombin can stimulate platelets and hence induce aggregation. Response to these aggregating agents (known as agonists) provides a diagnostic pattern for different disorders of platelet function. Is von Willebrand factor required for platelet adhesion to collagen? Plasma von Willebrand factor […]

How do you describe the sound of water? The verb burble captures both the movement of the water and the sound it makes as it moves. You could also say that a brook or stream or river babbles or ripples or even trickles. The word burble was first used in the 1300’s, and it probably […]

How does temperature affects the volume of gas inside the ping pong ball? Ping Pong Ball Have you ever wondered why you do so? When you let your ball float on hot water, the temperature of the air inside the ball also increases; which, in turn, leads to an increase in the volume of the […]

How much is a nano liter? How many nano liter in 1 liter? The answer is 1000000000. How do you convert nanoliters to liters? So 1 nanoliter = 10-9 liter. What does 500ml mean? 500 Milliliters (ml) = 0.500000 Liters (L) 1 ml = 0.001000 L. 1 L = 1,000 ml. How many 500ml are […]

What are the disadvantages of using ultrasound? Disadvantages of ultrasonography include the fact this imaging modality is operator and patient dependent, it is unable to image the cystic duct, and it has a decreased sensitivity for common bile duct stones. What is the side effect of ultrasound? Unlike some other scans, such as CT scans, […]

Can you compare two vectors? If contents of vectors are equal than it will return true else false. It will compare all the elements in vector, we can not compare the sub sections of vectors using it. It will compare all the elements in vector, by calling operator == on each element. What has both […]

In what there is no change of temperature? Answer. Answer: When solid melts, the temperature remains the same, this is because the absorbed heat is utilized in breaking the forces of attraction between the particles and hence solid changes to a liquid state without changing in temperature. What are the conditions when there is no […]

How many #1 wires can you install in parallel? Parallel conductor installations are covered in NEC 310.10(H) and are permitted for each phase, polarity, neutral, or grounded conductor in sizes 1/0 AWG and larger. Joining conductors in parallel is like having two or more smaller conductors connected at each end to make one larger conductor. […]