What are some examples of drag force? Another interesting force in everyday life is the force of drag on an object when it is moving in a fluid (either a gas or a liquid). You feel the drag force when you move your hand through water. You might also feel it if you move your […]
What are the negative effects of dams?
What are the negative effects of dams? Dams store water, provide renewable energy and prevent floods. Unfortunately, they also worsen the impact of climate change. They release greenhouse gases, destroy carbon sinks in wetlands and oceans, deprive ecosystems of nutrients, destroy habitats, increase sea levels, waste water and displace poor communities. How do dams affect […]
What are the 3 types of courtship?
What are the 3 types of courtship? Flies exhibit a stereotyped courtship ritual composed of several distinct stages: (1) orientation, (2) tapping, (3) wing song, (4) licking, (5) attempted copulation, and (6) copulation. Because these behaviors are innate, scientists can use them to study the genetic basis of a hard-wired behavior. What is human courtship […]
What is the volume of NaOH added at the equivalence point?
What are the main causes of disaster?
What are the main causes of disaster? Natural disasters are caused due to different reasons like soil erosion, seismic activity, tectonic movements, air pressure, and ocean currents etc. Natural activities taking place in the earth’s crust, as well as surface, are the main reasons for these disasters. What are the 5 man-made disasters? Man-made disasters […]
Under what condition Doppler effect is called red shift and blue shift?
Under what condition Doppler effect is called red shift and blue shift? For visible light, the bluer part of the spectrum has shorter wavelengths, and the redder part of the spectrum has longer wavelengths. Thus, the Doppler effect for light is called a ‘blueshift’ if the light source is coming toward an observer, and a […]
Is tidal energy expensive?
Is tidal energy expensive? Tidal turbines are more expensive to build than wind turbines but can capture more energy with the same size blades. Do tidal turbines kill fish? Tidal fences and turbines are expected to have minimal impact on ocean ecosystems. Tidal fences do have the potential to injure or kill migratory fish, however, […]
What is an example of coordination in sport?
What is an example of coordination in sport? Hitting and catching sports make up most of this list, with the exception being auto racing, which also requires great levels of handeye coordination. See rankings for other components of fitness….Sports Requiring Good Hand-Eye Coordination. ranking sport rating (/10) 1 Baseball/Softball 9.25 2 Table Tennis 8.88 3 […]
What are the uses of permanent magnet?
What are the uses of permanent magnet? Permanent magnets are used in the following major groups: acoustic transducers, motors and generators, magneto-mechanical devices, and magnetic field and imaging systems. You will find permanent magnets in many products, such as televisions, telephones, computers, audio systems, and automobiles. Which is a permanent magnet? Permanent magnets are materials […]