What makes a real image? A real image occurs where rays converge, whereas a virtual image occurs where rays only appear to diverge. Real images can be produced by concave mirrors and converging lenses, only if the object is placed further away from the mirror/lens than the focal point, and this real image is inverted. […]
What is easier for MG to do based on its valence electrons?
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 […]
Do bulbs in series have the same brightness?
Do bulbs in series have the same brightness? Placing cells in series increases the voltage in the circuit by 1.5 V for each cell. Increasing the number of bulbs in a series circuit decreases the brightness of the bulbs. In a series circuit, the voltage is equally distributed among all of the bulbs. Bulbs in […]
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 anyone lost in space?
Is anyone lost in space? A total of 18 people have lost their lives either while in space or in preparation for a space mission, in four separate incidents. Given the risks involved in space flight, this number is surprisingly low. The two worst disasters both involved NASA’s space shuttle. What are the risks of […]
Why do the two slits need to be small in order for an interference pattern to occur?
Why do the two slits need to be small in order for an interference pattern to occur? The very short wavelengths of visible light explain why interference effects are observed only in special circumstances—the spacing between the sources of the interfering light waves must be very small to separate regions of constructive and destructive interference. […]
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. […]
What three conclusions came from the gold foil experiment?
What three conclusions came from the gold foil experiment? most of the alpha particles did pass straight through the foil. a small number of alpha particles were deflected by large angles (> 4°) as they passed through the foil….Rutherford and the nucleus. What happened Rutherford’s conclusions Most of the alpha particles did pass straight through […]