Category: Physics

How do you calculate the image distance of a concave mirror? Suppose an object is placed u cm in front of a spherical mirror of focal length f such that the image is formed v cm from the mirror, then u, v and f are related by the equation; 1/f= 1/u + 1/v. This equation […]

Why stigma at the top of the pistils is often sticky? The stigma is the part of the female reproductive part of the flower. This is used on the top of pistil and it is naturally sticky by both trap pollen. When the pollen lands on the stigma, it will grow a tube down style […]

How much does it cost to fill a scuba tank with air? Did you know that there are many different grades of breathing air? Standard Air SCUBA Cylinders Price Standard Air Fill (Up To 3500 psi) $8.00 Tanks-A-Lot Fill Card (10 Air Fills*) $50.00 Visual Inspection (VIP/VCI) $20.00 Visual Inspection O2 Clean $25.00 How much […]

Is an oxbow lake? An oxbow lake is a U-shaped lake that forms when a wide meander of a river is cut off, creating a free-standing body of water. In south Texas, oxbows left by the Rio Grande are called resacas. In Australia, oxbow lakes are called billabongs. What does point bar mean? A point […]

What does it mean to view something? transitive verb. 1 : to look at attentively : scrutinize, observe view an exhibit. 2a : see, watch. b : to look on in a particular light : regard doesn’t view himself as a rebel. How do the different reference frames affect how you describe the motion of […]

What are 3 compound sentences? Compound Sentences with Coordinating Conjunctions She did not cheat on the test, for it was the wrong thing to do. I really need to go to work, but I am too sick to drive. I am counting my calories, yet I really want dessert. He ran out of money, so […]

Can Glow sticks kill dogs? Are glow sticks poisonous to dogs? Chewing on a glow stick can have harmful effects. The dog’s mouth, skin and eyes will become irritated as the fluid inside the stick leaks out. He may vomit, gag or salivate quite a bit as the toxic liquid is swallowed. What is inside […]

Which planet would float in water? Saturn What are the two foci? An ellipse has two focus points. The word foci (pronounced ‘foe-sigh’) is the plural of ‘focus’. One focus, two foci. If the major axis and minor axis are the same length, the figure is a circle and both foci are at the center. […]

What does AM and FM stand for on the radio? AM and FM modulated signals for radio. AM (Amplitude Modulation) and FM (Frequency Modulation) are types of modulation (coding). The electrical signal from program material, usually coming from a studio, is mixed with a carrier wave of a specific frequency, then broadcast. How can I […]

How do you tell what size fuse you need? Find the size of fuse by multiplying the amps required by the device (2) by 1.5. 2×1.25 = 2.5 then we will round up to the nearest fuse size (in multiples of 5 amps) which would call for a 5 amp fuse. Cross Reference that fuse […]