¿Qué debo hacer para pasar el examen de manejo? ¿Cómo aprobar el examen teórico de conducir? Estudia lo más posible en el tiempo correspondiente. Pide consejos a familiares o amigos que lo hayan hecho antes. Asiste a tus clases responsablemente. Realiza algún examen teórico de conducir previamente a tu prueba. Verifica el tiempo que tienes […]
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 […]
What is air pressure and what causes it?
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 […]
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 […]
Who said that a force is not needed to keep an object moving?
Who said that a force is not needed to keep an object moving? Newton What is natural state of an object? Objects do not change motion without unbalanced force. Objects in motion do not always require a force to keep them moving. Objects have two “natural” states of motion, at rest (static equilibrium) and moving […]
How can we make this object move?
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 are three space explorations?
What are three space explorations? Examples of such efforts include the development of the Curiosity Mars rover, the Cassini-Huygens mission to Saturn and its moons, and the development of major space-based astronomical observatories such as the Hubble Space Telescope. What was the coolest space mission? Apollo 9 and 10 were again crewed test flights, but […]
What do negative values for net torque mean?
What do negative values for net torque mean? Oh, torque can be positive or negative. Let us say that a positive torque would make a stationary object rotate counter clockwise and a negative torque would make it rotate clockwise. Is a clockwise moment positive or negative? The direction of a moment is opposite to the […]
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 […]