How can you tell when a girl is about to start her period? But there are some clues that it will start soon: Most of the time, a girl gets her period about 2 years after her breasts start to develop. Another sign is vaginal discharge fluid (sort of like mucus) that a girl might […]
Is total internal reflection refraction?
Is total internal reflection refraction? In general, total internal reflection takes place at the boundary between two transparent media when a ray of light in a medium of higher index of refraction approaches the other medium at an angle of incidence greater than the critical angle. … Which of the following must present for total […]
How much did the Wright Flyer weight?
How much did the Wright Flyer weight? 274 kg Why did the Wright brothers open a bike shop? Wright Cycle Exchange (1892-1893) After both brothers purchased bicycles in the spring of 1892, their aptitude with bicycle repairs and the high demand for repairmen led them to starting their own repair shop. Did Orville Wright have a […]
When the vapor pressure is less than atmospheric pressure a liquid will?
When the vapor pressure is less than atmospheric pressure a liquid will? Pressure: when the external pressure is: less than one atmosphere, the boiling point of the liquid is lower than its normal boiling point. equal to one atmosphere, the boiling point of a liquid is called the normal boiling point. Does higher vapor pressure […]
Does higher frequency mean higher amplitude?
Does higher frequency mean higher amplitude? A high amplitude wave is a high-energy wave, and a low-amplitude wave is a low-energy wave. So a wave of a particular amplitude will transmit more energy per second if it has a higher frequency, simply because more waves are passing by in a given period of time. How […]
What are the dangers of gallium?
What are the dangers of gallium? * Gallium can affect you when breathed in. * Gallium is a CORROSIVE CHEMICAL and contact can severely irritate and burn the skin and eyes with possible eye damage. * Breathing Gallium can irritate the nose and throat causing coughing and wheezing. * Gallium may damage the liver and […]
Is recycled steel as strong as new steel?
Is recycled steel as strong as new steel? It is one of the only materials that does not lose its properties when recycled. Even after incineration steel can be recovered for recycling. Recycled steel is as strong and durable as new steel made from iron ore. Is Aluminium more sustainable than steel? Aluminium is called […]
Why is it called Blue Planet?
Why is it called Blue Planet? Planet Earth has been called the “Blue Planet” due to the abundant water on its surface. Here on Earth, we take liquid water for granted; after all, our bodies are mostly made of water. However, liquid water is a rare commodity in our solar system. Liquid water covers most […]
Which statement describes a similarity between the state and federal government?
Which statement describes a similarity between the state and federal government? Which statement describes a similarity between the state and the federal governments under the U.S. Constitution? Both levels of government allow for the election of judges. Both levels of government have the power to ratify treaties. What is the job of the judicial branch […]
Is energy ever not conserved?
Is energy ever not conserved? When the space through which particles move is changing, the total energy of those particles is not conserved. It’s just as true for “radiation” — particles like photons that move at or near the speed of light. The thing about photons is that they redshift, losing energy as space expands. […]