Has a mare won the Kentucky Derby? Winning Colors (1988), Genuine Risk (1980) and Regret (1915) are the only fillies to win the Kentucky Derby. Winning Colors and Genuine Risk are the only two fillies to compete in all three Triple Crown races. Could any horse beat Secretariat? Only four horses challenged Secretariat in the […]
Which type of friction is the hardest to overcome?
Which type of friction is the hardest to overcome? Static friction Do smooth tires have more friction? Under dry conditions on paved roads, a smooth tire gives better traction than a grooved or patterned tread because a larger area of contact is available to develop the frictional forces. These values represent a compromise between the […]
Why do things look bigger under water?
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 […]
Was Hurricane Sandy the worst in history?
Was Hurricane Sandy the worst in history? Hurricane Sandy (unofficially referred to as Superstorm Sandy) was the deadliest, the most destructive, and the strongest hurricane of the 2012 Atlantic hurricane season. The storm inflicted nearly $70 billion (2012 USD) in damage and killed 233 people across eight countries from the Caribbean to Canada. What made […]
What are the limitations of classical mechanics?
What are the limitations of classical mechanics? One experimental phenomenon that could not be adequately explained by classical physics was black-body radiation. Hot objects emit electromagnetic radiation. The burners on most electric stoves glow red at their highest setting. What are the inadequacy of classical mechanics? The inadequacy of Classical Mechanics are : It does […]
Is buoyant force always up?
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 […]