Category: Physics

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? Parts of a Transverse wave: The crest is the top of the wave. The trough is at the bottom of the wave. The wavelength is the length of the wave. The amplitude of a wave is the highest amount of vibration that the medium gives from the rest […]

What does left curve mean? The roadway ahead curves to the left. Slow your speed and keep well to the right. The sign may be accompanied by an advisory speed placard, helping you navigate the curve safely. What are the two classification of lines? How many types of lines are there? There are two basic […]

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 […]

Is sea water more dense than water? Salt water is more dense than fresh water Seawater is more dense than fresh water so it sinks beneath freshwater. This means that when rivers flow out into the sea the river freshwater floats on top of the sea water. Is salt water more dense then fresh water? […]

How much is 100 km an hour? Convert 100 Kilometers per Hour to Miles per Hour km/h mph 100.00 62.137 100.01 62.143 100.02 62.150 100.03 62.156 How fast is a 100km in mph? Kilometer/hour to Mile/hour Conversion Table Kilometer/hour [km/h] Mile/hour [mi/h] 20 km/h 12.4274238447 mi/h 50 km/h 31.0685596119 mi/h 100 km/h 62.1371192237 mi/h 1000 […]

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 […]

Does body temp go up at night? It tends to go up and down a little during the day, and the same is true at night, although while you’re sleeping it can be 1 to 2 degrees lower than in the daytime. Body temperature starts to fall as bedtime approaches, paving the way for a […]

How can we prevent the global warming? How Can We Stop Global Warming? Recycle more. The aim is to cut down the amount of carbon dioxide released in the environment. Drive less. Plant trees. Switch to renewable energy. Use energy-efficient devices. Use less hot water. Turn off electronic devices. Spread awareness. What are ways to […]

Why is the maximum possible heat rate for a heat exchanger not equal to Cmax Thi TCI? Why is the maximum possible heat rate for a heat exchanger not equal to Cmax(Thi-Tci)? Can the outlet temperature of the cold fluid ever exceed the inlet temperature of the hot fluid? No the outlet temperature of the […]