What is the difference between the velocity and acceleration? Velocity is the rate of change of displacement. Acceleration is the rate of change of velocity. Velocity is a vector quantity because it consists of both magnitude and direction. Acceleration is also a vector quantity as it is just the rate of change of velocity. What […]
What type of stars have longer periods 2 to 60 days?
What type of stars have longer periods 2 to 60 days? Cepheid stars and RR Lyrae star are examples of pulsating variable stars. The greater the luminosity of a Cepheid star, the longer its period of oscillation. What is so special about Cepheids? Cepheids, also called Cepheid Variables, are stars which brigthen and dim periodically. […]
How much heat does it take to melt 1g of ice?
Why is ironing clothes important?
Why is ironing clothes important? Ironing not only eliminates wrinkles and shrinkage, but it also leaves clothes looking fresher. Ironing also manipulates the fabric in clothes to improve their quality and ensure a long life. Having clean and fresh clothes leaves you feeling better about yourself and boosts self-confidence. Is it bad to wash hands […]
How do you prevent chromatic aberration in glasses?
How do you prevent chromatic aberration in glasses? Try a smaller frame with smaller lenses. CA and distortion is most apparent when you’re not looking with your eyes pointed forward.. Also, try lenses with a higher abbe value. I already tried CR-39 lenses, which is the material with the highest abbe value, and it’s not […]
What is the correct angle of banking of the road?
What is happening to the rabbit population?
What is happening to the rabbit population? The culprit was discovered to be rabbit hemorrhagic disease, a virus so deadly it has been likened to a plague. The disease, which has a mortality rate as high as 70%, had previously devastated rabbit and hare populations in China, Europe and Australia, first reaching domestic rabbits in […]
Why do people who participate in marathons tend to have smaller muscles?
Why do people who participate in marathons tend to have smaller muscles? Why do people who participate in marathons tend to have smaller muscles? Muscle endurance is more important for them than muscle strength. How does gender affect cardiac output? Resting and exercise stroke volumes (ml/beat) were lower in women than in men but did […]
What is the relationship between a neutron star and a pulsar?
What is the relationship between a neutron star and a pulsar? Most neutron stars are observed as pulsars. Pulsars are rotating neutron stars observed to have pulses of radiation at very regular intervals that typically range from milliseconds to seconds. Pulsars have very strong magnetic fields which funnel jets of particles out along the two […]
What are the main stresses developed in a pressure vessel?
What are the main stresses developed in a pressure vessel? Primary and Secondary Stresses The pressure vessel codes define two important ‘classes’ of stress. A primary stress is related to mechanical loading directly and satisfies force and moment equilibrium. Primary stress that exceeds the yield stress by some margin will result in failure. What is […]