What happens to the molecules of water when it freezes? Point out that when water freezes, the water molecules have slowed down enough that their attractions arrange them into fixed positions. Water molecules freeze in a hexagonal pattern and the molecules are further apart than they were in liquid water. Note: The molecules in ice […]
Is energy released in alpha decay?
Is energy released in alpha decay? The energy released in this α decay is in the MeV range, about 106 times as great as typical chemical reaction energies, consistent with many previous discussions. Most of this energy becomes kinetic energy of the α particle (or 4He nucleus), which moves away at high speed. Is energy […]
Why must the transfer of metal be done quickly?
What are the two main barriers against implementing a renewable energy system?
What are the two main barriers against implementing a renewable energy system? The Siting and Transmission However, they can still present two primary barriers to renewables namely siting and transmission. What are the barriers in implementing alternative fuels? Alternative Fuel Vehicles Are Expensive. New technologies almost always require a high level of front-end capital investment. […]
What are five differences between plant and animal cells?
What are five differences between plant and animal cells? A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many, smaller vacuoles. Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds […]
What are the six question words?
What are the six question words? The words are Who, What, Where, When, Why and How. These posters give simple definition of what is required to answer these question starters. They can be printed and placed in plastic sleeves or page protectors or you can print them poster size for your writing areas. What are […]
Can sound create a magnetic field?
Can sound create a magnetic field? – just created by collisions of atoms in the air and the pressure waves created travels in air and gets to your ear drum and the membrane vibrates and if the frequency is right you hear a sound. … Do magnetic fields vibrate? SUMMARY The vibration of a perfectly […]
Can I lift a 100 pound box?
What should oxygen and acetylene be set at?
What should oxygen and acetylene be set at? In case the recommended working pressure settings are not indicated, safe numbers are 40 psi for oxygen and 10 psi for acetylene, regardless of cutting tip size. Simply adjust them until you get a neutral flame, but pay close attention to the acetylene pressure to prevent it […]
What is amplitude Class 8 Definition?
What is amplitude Class 8 Definition? The maximum displacement of a vibrating object from its Central position is called the amplitude of vibration. The amplitude actually tell us how far the vibrating object is displaced from its central position. What is the amplitude of sound? The amplitude of a sound wave is the measure of […]