Category: Physics

Is Earth a closed system? The Earth is a closed system for matter That is a list of all basic elemental materials on our planet. Because of gravity, matter (comprising all solids, liquids and gases) does not leave the system. It is a closed box. So the chemical matter we have on Earth will always […]

Why do merry go round turn counter clockwise? Traditionally, horses are mounted from the left side. This is because most warriors were right handed and kept their swords on their left side for fast access. In England, the carousels rotate clockwise so the horses can be mounted from the left, keeping with tradition. Why do […]

How do you tell if an egg is boiled by spinning? Tip: Just place the egg on a hard surface, like the counter, and spin it like a top. As it’s spinning, grab it with your fingers ever-so-briefly and immediately let go. If it keeps spinning, it’s raw. If it stops dead, it’s boiled. How […]

When you are emotionally distressed you should talk to someone you trust and get some perspective on your problems? When you are emotionally distressed, you should talk to someone you trust and get some perspective on your problems. When you are emotionally distressed, you should take a moment and recognize your anger for what it […]

How can heat pumps be more than 100 efficient? By contrast, heat pumps seemingly undertake the impossible: you get more heating out than the energy you put in. This is possible because we are using energy to move heat – rather than converting the energy directly to heat. As a result the apparent efficiency in […]

What is scale variable? Essentially, a scale variable is a measurement variable — a variable that has a numeric value. This could be an issue if you’ve assigned numbers to represent categories, so you should define each variable within the measurement area individually. What types of scales are used to measure the variables? Four Types […]

What is the maximum torque that the loop can experience? Torque on the loop can be found using τ=NIABsinθ τ = N I A B sin ⁡ . Maximum torque occurs when θ = 90º and sin θ = 1. What is the magnetic dipole moment of current carrying coil? The magnetic dipole moment of […]

How many realms of existence are there? six realms How many natural realms are there? four realms Which realm of the Earth is most important for human life and why? Biosphere How the natural realms are useful to us? Answer. the natural realms are useful for us in many ways like water is a hydrosphere […]

What is the most common type of wasted energy in the home? Leaving the Lights On One of the most obvious energy-wasting habits is leaving the lights on, and it’s also one of the easiest habits to fix. By simply turning off the lights when you leave a room or your home, you will save […]

What is the first step to determining your following distance? As you will remember, you measure your following distance by locating a vehicle ahead of you, find a fixed object that the vehicle is passing and count. As you reach the same fixed object, that tells you how many seconds have passed. If you are […]