Is buoyant force always up? The buoyancy force is caused by the pressure exerted by the fluid in which an object is immersed. The buoyancy force always points upwards because the pressure of a fluid increases with depth. What force is the opposite of buoyancy? Weight W acting vertically downwards works in the opposite direction […]
Why is NASA important to our daily life?
Why is NASA important to our daily life? Space technology has helped astronauts and scientists to research stars, planets, and the creation of the universe. The technologies discovered by NASA to explore new horizons for humanity are now being put to everyday applications. How does NASA affect the environment? From solar arrays and fuel cells […]
Which best describes the operational period briefing?
Which best describes the operational period briefing? 1 Answer. Explanation: The operations period briefing is the shift briefing that is conducted at the beginning of every operation period in order to present the incident action plan to tactical resource supervisor. Does an incident commander’s scope of authority come from the incident action plan? Explanation: An […]
What causes a solution to be conductive?
What causes a solution to be conductive? When a solution conducts electricity, the charge is carried by ions moving through the solution. Ions are atoms or small groups of atoms that have an electrical charge. Some ions have a negative charge and some have a positive charge. Pure water contains very few ions, so it […]
Which factor does not affect photon?
Which factor does not affect photon? According to photon, they can not be affected by electric and magnetic fields. But EM waves are affected by external electric and magnetic fields. Why ? According to theory of properties of photon, they can not be affected by electric and magnetic fields and it is neutral. Is velocity […]
How do you use a microscope to focus on objects on prepared slides?
How do you use a microscope to focus on objects on prepared slides? Viewing Prepared Slides Start by rotating the objective lens to lowest power. Place a slide on the stage, label side up, with the coverslip centered. On LOW POWER ONLY, use the coarse focus knob to get the object into focus. If you […]
What is used to represent a compound?
What is used to represent a compound? Compounds are represented by chemical formulas. Elements in a compound are represented by chemical symbols, and the ratio of different elements is represented by subscripts. Which compound contains both ionic and covalent bonds Ki CaCl2 ch2br2? Answer Expert Verified NaCn contains an Na+ ion and a CN- negative […]
When a substance is boiling Will the added heat increase its temperature?
When a substance is boiling Will the added heat increase its temperature? Adding heat, however, does not always increase the temperature. For instance, when water is boiling, adding heat does not increase its temperature. This happens at the boiling temperature of every substance that can vaporize. What are the 4 conditions which allow bacteria to […]
How do you get a bottle cap off without an opener?
Who is the father of model theory?
Who is the father of model theory? Tarski’s work included logical consequence, deductive systems, the algebra of logic, the theory of definability, and the semantic definition of truth, among other topics. His semantic methods culminated in the model theory he and a number of his Berkeley students developed in the 1950s and ’60s. What is […]