How many Litres is 100km good? In general, 5 to 8 litres per 100 km would be considered a good fuel efficiency, 8 to 12 litres per 100 km would be average, and more than 12 litres per 100 km would be considered a relatively low fuel efficiency. How do you calculate fuel per hour? […]
What four features do scientific theories have to have to be taken seriously?
What four features do scientific theories have to have to be taken seriously? An interesting but far from easy question. There are many definitions out there, but there is some common ground to them. They all tend to agree that a theory needs to be (a) substantiated, (b) explanatory, (c) predictive, and (d) testable. What […]
Is piezoelectric dangerous?
Is piezoelectric dangerous? They are used extensively for their excellent piezoelectric properties (d33=374 pC/N, kp=0.67) at the morphotropic phase boundary (MPB) [2]. However, lead and its compounds are generally toxic. The important symptoms of lead poisoning are fatigue, aches in muscles and joints, abdominal discomfort, etc. Can piezoelectricity be stored? The energy harvesting via Piezoelectricity […]
Which statement accurately describes how matter and energy are used in ecosystems?
Which statement accurately describes how matter and energy are used in ecosystems? Which statement most accurately describes how matter and energy are used in ecosystems? Energy flows through ecosystems; matter cycles within and through ecosystems. The law of conservation of matter states that matter cannot be created, yet matter is sometimes gained or lost to […]
Can gauge factor be less than 1?
Can gauge factor be less than 1? If Poisson’s ratio is 0.5, the gauge factor is 1+1=2. If there is no piezoelectric effect, then knowing the gauge factor means you can figure out length change from resistance change. Therefore a 0.5 Poisson ratio is for completely incompressible material, like a metal. So typical gauge factor […]
What is the application of right hand thumb rule?
What is the application of right hand thumb rule? The right-hand thumb rules can be used to determine the direction of the magnetic field and the direction of current flowing through the conductor. Where do you put the right hand rule? To apply the right hand rule to cross products, align your fingers and thumb […]
How do you find the emf of a circuit?
How do you find the emf of a circuit? The EMF of the cell can be determined by measuring the voltage across the cell using a voltmeter and the current in the circuit using an ammeter for various resistances. What is the difference between voltage and EMF? Emf is the voltage developed between two terminals […]
What causes imbalance in the ecosystems?
What causes imbalance in the ecosystems? Ecological imbalance is when a natural- or human-caused disturbance disrupts the natural balance of an ecosystem. The balance of an ecosystem can be disrupted by natural or human-caused disturbances. If a species disappears or a new species is introduced it can shift an ecosystem to a state of ecological […]
Is the number 1 even?
What are five ways you can help reduce air pollution?
What are five ways you can help reduce air pollution? Ways to Reduce Air Pollution Riding a bike or walking instead of driving. Taking a bus or carpooling. Buying a car that has greater fuel efficiency. Turning off lights and appliances when they are not in use. Using energy efficient light bulbs and appliances. Buying […]