How do gamma rays work? Gamma-rays have the smallest wavelengths and the most energy of any other wave in the electromagnetic spectrum. These waves are generated by radioactive atoms and in nuclear explosions. Gamma-rays can kill living cells, a fact which medicine uses to its advantage, using gamma-rays to kill cancerous cells. Why are gamma […]
What are the noise control methods?
What are the noise control methods? Extraction, ventilation, cooling, openings in walls and enclosures. Instead of fitting silencers, it is often possible to achieve a 10 – 20 dB reduction in airborne noise from a duct or opening by lining the last bend in the ductwork with acoustic absorbent (foam or rockwool / fibreglass). Which […]
Why would air pressure be greater at sea level than it would be on the top of a mountain?
Which best describes the future of employment in the energy career cluster?
Which best describes the future of employment in the energy career cluster? Which best describes the future of employment in the Energy career cluster? Oil and gas extraction and developing plant-based fuels are on the rise while coal mining, metal ore mining, and pipeline transportation are on the decline. Alton works in Energy Transmission. What […]
Which circuit is better series or parallel?
Which circuit is better series or parallel? Two bulbs in a simple parallel circuit each enjoy the full voltage of the battery. This is why the bulbs in the parallel circuit will be brighter than those in the series circuit. Another advantage to the parallel circuit is that if one loop is disconnected, then the […]
What are the 10 principles of community policing?
What are the 10 principles of community policing? Philosophy and organisational strategy. Commitment to community empowerment. Decentralised and personalised policing. Immediate and long-term proactive problem solving. Ethics, legality, responsibility and trust. Expanding the police mandate. Helping those with special needs. Grass-roots creativity and support. Does community based policing work? There is research to demonstrate that […]
What are 2 parts of transverse wave?
What are the top 5 exercises?
What are the top 5 exercises? 7 Most Effective Exercises Walking. Any exercise program should include cardiovascular exercise, which strengthens the heart and burns calories. Interval training. Squats. Lunges. Push-ups. Abdominal Crunches. Bent-over Row. How can I get my flexibility back? Bend your knees and keep a straight back when picking up your weight. Place […]
Is sunlight a dependent variable?
Is sunlight a dependent variable? Plant height is the dependent variable that responds to the change in the independent variable. Each plant is exposed to an equal amount of sunlight, so sunlight is the control variable. They are also grown in the same sized pot and given an equal amount of water. What is the […]
What is the closest thing to pure energy?
What is the closest thing to pure energy? Light What is the purest form of energy? Unlike any other living thing on Earth, electric bacteria use energy in its purest form – naked electricity in the shape of electrons harvested from rocks and metals. What are pure energy beings? An energy being or astral being […]