What happens to capacitors at low frequencies? At very low frequencies, such as 1Hz our 220nF capacitor has a high capacitive reactance value of approx 723.3KΩ (giving the effect of an open circuit). At very high frequencies such as 1Mhz the capacitor has a low capacitive reactance value of just 0.72Ω (giving the effect of […]
What can a firewall not prevent?
What can a firewall not prevent? Users not going through the firewall: A firewall can only restrict connections that go through it. It cannot protect you from people who can go around the firewall, for example, through a dial-up server behind the firewall. It also cannot prevent an internal intruder from hacking an internal system. […]
What are the two types of surface waves?
What are the two types of surface waves? The two types of surface waves are named Love waves and Rayleigh waves, after the scientists who identified them. Love waves have a horizontal motion that moves the surface from side to side perpendicular to the direction the wave is traveling. Of the two surface waves, Love […]
What are 2 examples of mechanical waves?
What are 2 examples of mechanical waves? A sound wave is an example of a mechanical wave. Sound waves are incapable of traveling through a vacuum. Slinky waves, water waves, stadium waves, and jump rope waves are other examples of mechanical waves; each requires some medium in order to exist. Who discovered scalar waves? Heinrich […]
Is White Fang a dog or wolf?
What does pen stand for?
What does pen stand for? PEN originally stood for “Poets, Essayists, Novelists”, but now stands for “Poets, Playwrights, Editors, Essayists, Novelists”, and includes writers of any form of literature, such as journalists and historians. Why pencils are not used in space? To understand why NASA was so keen on a workable space pen, you have […]
What are the 2 numbers given for each element?
What are the 2 numbers given for each element? The number above the symbol is the atomic mass (or atomic weight). This is the total number of protons and neutrons in an atom. The number below the symbol is the atomic number and this reflects the number of protons in the nucleus of each element’s […]
What is the symbol of cobalt?
What is the symbol of cobalt? Co What are the effects of cobalt on humans? Cobalt dust may cause an asthma-like disease with symptoms ranging from cough, shortness of breath and dyspnea to decreased pulmonary function, nodular fibrosis, permanent disability, and death. Exposure to cobalt may cause weight loss, dermatitis, and respiratory hypersensitivity. What is […]
Is dry ice harmful?
How do you put pressure in a relationship?
How do you put pressure in a relationship? Tips for keeping your relationship afloat Communicate with each other. Learn to compromise. Reassure your partner of your feelings for them. Get a fresh perspective. Don’t be afraid to spend time apart. Don’t try to work things out when either of you is angry. Respect your differences. […]