What are 3 risk factors of heart disease that you Cannot control? Major risk factors that can’t be changed Increasing Age. The majority of people who die of coronary heart disease are 65 or older. Male gender. Heredity (including race) Tobacco smoke. High blood cholesterol. High blood pressure. Physical inactivity. Obesity and being overweight. What […]
How can we reduce harmonics in power system?
How can we reduce harmonics in power system? To attentuate harmonics, users can use passive filters, inductive reactors, phase-shifting transformers, active filters, or multi-pulse converter sections. Passive filters apply tuned series L-C circuits (circuits with inductance and capacitance) that attentuate specific harmonic frequencies. How much current total harmonic distortion is acceptable? increased temperatures and interference […]
Can two waves with different frequencies interfere?
Can two waves with different frequencies interfere? 2 Answers. No; wave interference takes place whenever two waves of any frequency, same, nearly the same or widely different interact. An air molecule next to your ear, for example, can only respond to the sum of all the different sound waves reaching it at any moment. What […]
How do you tell if you have had a seizure?
How do you tell if you have had a seizure? General symptoms or warning signs of a seizure can include: Staring. Jerking movements of the arms and legs. Stiffening of the body. Loss of consciousness. Breathing problems or stopping breathing. Loss of bowel or bladder control. Falling suddenly for no apparent reason, especially when associated […]
What are the common group of minerals?
What are the common group of minerals? Silicates, oxides, sulfates, sulfides, carbonates, native elements, and halides are all major mineral groups. Silicates. Oxides. Sulfates. Sulfides. Carbonates. Native Elements. Halides. What are the two main groups of minerals? All minerals, however, can be classified into two main groups—silicate minerals and nonsilicate minerals—based on the chemical compositions […]
How do you find a circular displacement?
How do you find a circular displacement? Angular displacement of a point can be given by using the following formula, Angular displacement = \theta _{f}- \theta _{i} Where, dv = a dt. Integrating on both sides, v – u = at. Also, v^{2} – u^{2} =2as. Substituting the value of u from the equation 1 […]
What allows to float?
What allows to float? Objects with tightly packed molecules are more dense than those where the molecules are spread out. Density plays a part in why some things float and some sink. Objects that are more dense than water sink and those less dense float. When an object floats, it pushes water out of the […]
What causes a changing magnetic field?
What causes a changing magnetic field? The changing magnetic field caused by the material’s motion induces a current in the coil of wire proportional to the change in field. For a 1, the magnetic field changes from one direction to the other; this change induces a current in the coil. What happens when electric and […]
Does direction matter measuring momentum?
Does direction matter measuring momentum? Direction does not matter when you are measuring momentum. Momentum can be transferred from one object to another. When objects collide, some momentum is lost. What is the difference between momentum and velocity? As nouns the difference between velocity and momentum is that velocity is (physics) a vector quantity that […]
How does air resistance affect cars?
How does air resistance affect cars? Air friction does not significantly affect a car’s gas mileage. Cars are slowed down when they stir up the air too much. Stirring up the air creates vortices and billows that take energy away from the car. This effect is known as “wake drag”, “pressure drag”, or “form drag”. […]