Category: Physics

What can I use for an axle on a mousetrap car? A mousetrap car is a model car made from simple materials that is powered by a mousetrap. A mousetrap car can be made from cardboard or balsa wood with CD’s for wheels and axles of wood or brass tubing. What makes a mousetrap car […]

What time period is SHM? The period T and frequency f of a simple harmonic oscillator are given by T=2π√mk T = 2 π m k and f=12π√km f = 1 2 π k m , where m is the mass of the system. Displacement in simple harmonic motion as a function of time is […]

What type of bond is in the compound no2? Nitrogen Dioxide (NO2) is a covalent compound that is composed of a central nitrogen atom single bonded to an oxygen atom and a double bond with another oxygen atom. At room temperatures, nitrogen dioxide is a reddish-brown gas that has a density of 1.8 g/dm3. Is […]

What causes a quartz clock to run fast? Please note that your clock might run faster than design just because of electric interference such as spikes that get counted as oscillations on top of those from quartz. This is the reason why quartz clocks might go faster but they will never slow down. The frequency […]

What is considered high pressure? A barometer reading of 30 inches (Hg) is considered normal. Strong high pressure could register as high as 30.70 inches, whereas low pressure associated with a hurricane can dip below 27.30 inches (Hurricane Andrew had a measured surface pressure of 27.23 just before its landfall in Miami Dade County). Is […]

How do I know what kind of spider bit me? They’re pretty much just like an insect bite. For the most part, you can’t tell a spider bit you just from your symptoms. You’ll get a little bump on your skin. It might get red, itchy, and swell up a bit. How do I know […]

What is the radius of curvature of a mirror? If the radius of curvature is 150 cm. then the focal length is 75 cm. The light will converge at the focal point, which is a distance of 75 cm from the mirror surface….The Anatomy of a Curved Mirror. Principal axis Center of Curvature Vertex Focal […]

Why is it difficult to get a good picture of what our Milky Way galaxy looks like? Why is it difficult to get a good picture of what our Milky Way galaxy looks like? -We’re in the middle of one of its arms, so we have no perspective. -It is very large and the edges […]

Is ABS bad for your car? Your car’s anti-lock braking system, or ABS, prevents your wheels from locking up and sending your car into a skid. But slamming on the brakes may cause your ABS to kick in when it isn’t needed. Doing so could wear out the anti-lock brake system prematurely and leave you […]

What statistics we use to compare the center and spread of data sets? Correct answer: The most common measures of center are the mean and median. The mean represents the arithmetic average of a set and the median is the middlemost value. On the other hand, the most common measures of spread are the mean […]