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 the most common type of wasted energy in the home?
What is the first step to determining your following distance?
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 […]
What happens if base-emitter junction is reverse biased?
What happens if base-emitter junction is reverse biased? If you reverse bias the diode, the diode cuts off. Now, the base-emitter junction in a transistor is going to essentially turn the transistor on or off. Now, the base-collector junction will not have that same power, but the base-emitter junction will determine whether the transistor is […]
What are the general types of intermolecular forces?
What are the general types of intermolecular forces? The three major types of intermolecular interactions are dipole–dipole interactions, London dispersion forces (these two are often referred to collectively as van der Waals forces), and hydrogen bonds. What are the properties of matter influenced by intermolecular forces? As the intermolecular attraction increases, • The vapor pressure […]
What are the three primary Colours as proposed by the trichromatic theory?
What are the three primary Colours as proposed by the trichromatic theory? The Young–Helmholtz theory of color vision is the best known trichromatic theory. Subsequent studies determined that there are three different retinal cone photopigments with peak sensitivities roughly corresponding to the three primary colors of trichromatic theory: blue, green, and red. How well does […]
What are the similarities between nonmetals and metalloids?
What are the similarities between nonmetals and metalloids? As compared to metals, they have low density and will melt at low temperatures. The shape of nonmetals cannot be changed easily because they are brittle and will break. Elements that have properties of both metals and nonmetals are called metalloids. They can be shiny or dull […]
How should you treat a common injury immediately after it happens?
How should you treat a common injury immediately after it happens? Immediately after your injury Rest. Resting is one of the most effective ways to start your healing process. Ice. The benefits of applying ice are greatest within the first day or two after sustaining an injury. Compress. Elevate. How many days should you ice […]
What is the frequency of a wave?
Is ProPilot assist worth it?
Is ProPilot assist worth it? Is ProPilot Assist worth it? The short answer: Yes. While it’s a relatively simple system compared with some on high-end vehicles, it actually does take a lot of the tedium out of highway driving and stop-and-go commutes. A longer answer: It’s definitely worth adding if you already wanted a fully […]