How are the circuits wires in houses? Circuits in houses are generally wired in parallel, which allows you to operate each light or power point independently of the others. How many circuits should a house have? Fifty years ago, a kitchen might have been served by a single electrical circuit, but today, a newly installed […]
Which number is used in forced convection?
Which number is used in forced convection? The parameter of importance in forced convection is the Péclet number, which is the ratio of advection (movement by currents) and diffusion (movement from high to low concentrations) of heat. When the Peclet number is much greater than unity (1), advection dominates diffusion. What is the primary driving […]
What does a 1% agarose gel mean?
What do radio waves visible light and gamma rays all have in common?
What do radio waves visible light and gamma rays all have in common? Radio waves, gamma-rays, visible light, and all the other parts of the electromagnetic spectrum are electromagnetic radiation. Electromagnetic radiation can be described in terms of a stream of mass-less particles, called photons, each traveling in a wave-like pattern at the speed of […]
Is C60 safe?
Is C60 safe? Most current evidence suggests that C60 isn’t toxic in humans, though more research is needed. According to a 2016 review, human and animal studies have found that reactions to application of C60 on the skin are uncommon. One 2012 study found that various doses of C60 dissolved in corn oil were not […]
What does the slope of displacement time graph gives?
What does the slope of displacement time graph gives? A sloping line on a displacement-time graph shows that the object is moving. In a displacement-time graph, the slope or gradient of the line, is equal to the velocity of the object. The steeper the line (and the greater the gradient) the faster the object is […]
How can you make it safe to exercise on a hot day?
How can you make it safe to exercise on a hot day? Stay safe during hot-weather exercise by drinking enough fluids, wearing proper clothing and timing your workout to avoid extreme heat. Whether you’re running, playing a pickup game of basketball or going for a power walk, take care when the temperature rises. Why is […]
Should you do easy or hard homework first?
Should you do easy or hard homework first? If you are easily frustrated and are quick to feel overwhelmed when things get tough, then perhaps you’re the type of person who should tackle the small, quick homework assignments first. In school, start your afternoons by completing the easiest assignments: doing so will motivate you to […]
What would happen if the orbit was circular?
What would happen if the orbit was circular? “If the Earth’s orbit were a perfect circle, we would not have seasons.” This statement is clearly false. A perfectly circular orbit would mean that the earth is always the same distance from the sun. However, the primary cause of our seasons is the tilt of the […]
What is one action a person can take to help ensure ability to participate in physical activity throughout life Apply sunscreen at steadily exercise regularly use tobacco?
What is one action a person can take to help ensure ability to participate in physical activity throughout life Apply sunscreen at steadily exercise regularly use tobacco? In this context, one action that helps ensure you can participate in physical activity throughout life is exercise regularly because in this way you can develop basic abilities […]