Aspiration effect is related to O the riser O straight sided sprue O tapered sprue mold Collapsibility

Q: Discuss the correlation between growing human population and climatic change?

A: Overpopulation means more use of the fossil fuels, and other natural resources which leads to the…

Q: All unit cell structures have six sides. Can crystals of a solid hay than six sides ? Explain your…

A: All unit cell structures have six sides. Can crystals of a solid hay than six sides ? Explain your…

Q: When wax is coated on clothes , they become water proof. Why?

A: When there is no wax, adhesive force between cloth and water molecules is stronger than the cohesive…

Q: How do airplanes stay in the air?

A: When air flows over any flat plate at an angle, like when you hold your hand out of a car window on…

Q: Particles of camphor move around on the surface of water. Why?

A: The surface tension of water decreases when the impurities are dissolved in it. The camphor is…

Q: what do you observe when you rub the ballpen in your skin or hair?

A: Ballpen rubbed on skin or hair

Q: What is ambipolar diffusion

A: Ambipolar diffusion: It is the diffusion of negative and positive species having opposite electrical…

Q: 20) Oil exposed to the atmosphere results in oxygen being absorbed into the oil is known as oiliness…

A: False

Q: What are the unusual physical properties of water ?

A: Physical properties of water :- (1) Refractive index It measures how fast light is…

Q: fined the average infiltration capacity at 60 * min A ring infiltrometer test were made on sandy…

A:

Q: How does regeneration affect the efficiency of a Brayton cycle, and how does it accomplish it?

A: By adding heat to the system, the regeneration increases the cycle efficiency of a Brayton cycle.

Q: 21:15 ןווa WhatsApp Image 20.. Water as a Resource: Indicate which statements are true and which are…

A: True. We need neutral water for irrigation and nutrients can be mixed in water before use.

Q: How do you know the density of silicone?

A: Given, volume of silicon chip , v = 6.25×19-9 m3 Change in temperature, ∆T = 35°C-25°C = 10°C = 10K…

Q: What are water proofing agents?

A: Waterproofing agents are sealant additives and/or resins that repel water and prevent damage to the…

Q: What makes up ozone?

A: Most of the ozone is found in upper atmosphere(Stratosphere). One ozone molecule is consist of three…

Q: A block of wood float at the interface between a layer of oil of unknown density Poil, and water…

A:

Q: The objective of a seawater reverse osmosis (SWRO) process is remove the salinity of seawater in…

A: When solutions of different solutions are separated with a semi-permeable membrane, water flows from…

Q: Why hot water bottles are used for fomentation?

A: Hot water has high specific heat capacity. Due to this, the water remains hot for a longer duration.

Q: Water can be sprayed easily when soap is added to it, Why?

A: Because addition of soap decreases the surface tension of water. The energy for spraying is…

Q: different types of pulpal stimuli such as thermal, bacterial, and electrical and how sensitivity…

A: When evaluating a restorative material, three main components should be considered: durability,…

Q: Discuss one importance of recycling on conservation of natural resources

A: In case you are not satisfied with what I provided above (or you just want to get some more ideas in…

Q: In 10 sentences, Describe the law of conservation of matter.

A: The law of conservation of mass says that neither chemical processes nor physical transformations…

Q: The surface tension of water can be increased by dissolving what in it?

A: The surface tension of water can be increased by dissolving what in it?

Q: Lubricants are used between the two parts of a machine. Why ?

A: Introduction: A lubricant is a substance that helps to reduce friction between surfaces in mutual…

Q: Birds swell their feather in winter, Why?

A: Birds often swell their feathers in the winter in order to keep themselves warm.

Q: Differentiate between ultrafiltration, nanofiltration and membrane osmosis

A: Ultrafiltration is one of the membrane filtrations in which pressure or concentration gradients are…

Q: Explain the mechanism involved in self-cleaning textiles and windows.

A: Nature developed a graceful approach to creating super repellent surfaces as well as self-cleaning…

Q: Find out Magnehile

A: