What is air pressure and what causes it? Air pressure is caused by the weight of the air molecules above. Even tiny air molecules have some weight, and the huge numbers of air molecules that make up the layers of our atmosphere collectively have a great deal of weight, which presses down on whatever is […]
Which metal is used for cathodic protection?
Which metal is used for cathodic protection? The simplest method to apply cathodic protection is by connecting the metal to be protected with another more easily corroded metal to act as the anode. Zinc, aluminium and magnesium are the metals commonly used as anodes. What is the difference between sacrificial anode and impressed current? The […]
How do you calculate ploidy?
How do you calculate ploidy? Ploidy can be assessed either by chromosome number or by flow cytometry using the DNA index (DI), the ratio of fluorescence in leukemic blasts compared to normal cells. Normal diploid cells have 46 chromosomes and a DI of 1.0, hyperdiploid cells have higher values, and hypodiploid cells lower. What does […]
How did Newton figure out gravity?
How did Newton figure out gravity? The legend is that Newton discovered Gravity when he saw a falling apple while thinking about the forces of nature. Whatever really happened, Newton realized that some force must be acting on falling objects like apples because otherwise they would not start moving from rest. Did Newton really discover […]
How do you appreciate in one word?
How do you appreciate in one word? Sometimes short is sweet. Thanks. Thank you. I am indebted to you. Dinner was delicious. I appreciate you. You are an inspiration. I am grateful. You are a blessing. What is a good sentence for gratitude? We would like to express our deep gratitude for your generous support. […]
What is the most common way for a virus to kill a cell?
What is the most common way for a virus to kill a cell? Most viral infections eventually result in the death of the host cell. The causes of death include cell lysis, alterations to the cell’s surface membrane and various modes of programmed cell death. Some viruses cause no apparent changes to the infected cell. […]
Is calcium carbonate a ionic compound?
Is calcium carbonate a ionic compound? Calcium carbonate (CaCO3) has ionic bonding between calcium ion Ca2+ and a polyatomic ion, CO2−3, but within the carbonate ion (CO32-), the carbon and oxygen atoms are connected by covalent bonds (shown above). Why calcium carbonate has both ionic and covalent bond? Calcium carbonate is another example of a […]
Can concave lens produce real image?
Can concave lens produce real image? Convex (converging) lenses can form either real or virtual images (cases 1 and 2, respectively), whereas concave (diverging) lenses can form only virtual images (always case 3). Real images are always inverted, but they can be either larger or smaller than the object. What are the properties of lenses? […]
How do you do IV push medications?
Which is the best power shower?
Which is the best power shower? The best power showers to buy Aqualisa Aquastream: The best all-round power shower. Mira Event XS: The best mid-range power shower. Triton AS2000SR: The best low-noise power shower. Mira Vigour Manual: The best budget power shower. Bristan Hydro Power 1500: A rock-solid, low-cost power shower. Can I use 6mm […]