Category: Physics

When should you let go of your first bowling ball? 40 – When you first let go of a bowling ball, it’s not rotating. It begins to rotate as it slides down the alley. Use energy concepts to explain why the ball’s forward speed decreases as it begins to spin. The bowling ball starts with […]

What is topographic surface? Surface topography is the local deviations of a surface from a perfectly flat plane. The topography of a surface is known to substantially affect the bulk properties of a material. Surface topography also known as surface texture, surface finish or surface profile. How do you mark a topographic map? The distinctive […]

What is the minimum thickness of the soap bubble? 141nm . What is the minimum thickness of a soap bubble needed for? PleaWhat is the minimum thickness of a soap bubble needed for constructive interference in reflected light if the light incident on the film has wavelengths 900 nm ? Assume the refractive index for […]

Why are SI prefixes used? SI prefixes are used to form decimal multiples and submultiples of SI units. They should be used to avoid very large or very small numeric values. The prefix attaches directly to the name of a unit, and a prefix symbol attaches directly to the symbol for a unit. What is […]

What happens if you unplug map sensor? Disconnecting the MAP or BARO sensor will set code 22. Misconnecting the BARO sensor to vaccum on a Mass Air car will cause the computer to lean out the fuel mixutre. Code 22 or 126 MAP (vacuum) or BARO signal out of range. The MAP or BARO sensor […]

What are we looking at when we see the Milky Way? When you observe the night sky with your eyes, you can see the Moon, perhaps several planets, and many stars. If you are in a particularly dark location and if the moonlight is not too bright, you may also see a faint band of […]

Is it normal for electrical wires to get warm? It is somewhat normal for a cord to get WARM for an appliance that uses significant power like a heater or a motor. If a cord gets hot, you are probably exceeding the rating for the cord. DO NOT USE A DEVICE IF THE CORD GETS […]

What is the difference between clay and sand? The largest, coarsest mineral particles are sand. These particles are 2.00 to 0.05 mm in diameter and feel gritty when rubbed between your fingers. Silt particles are 0.05 to 0.002 mm and feel similar to flour when dry. Clay particles are extremely fine — smaller than 0.002 […]

How does humidity relate to weather? The higher the humidity, the wetter it feels outside. On the weather reports, humidity is usually explained as relative humidity. Relative humidity is the amount of water vapor actually in the air, expressed as a percentage of the maximum amount of water vapor the air can hold at the […]

Do electric field lines go from positive to negative? Electric field lines always extend from a positively charged object to a negatively charged object, from a positively charged object to infinity, or from infinity to a negatively charged object. Electric field lines never cross each other. What is electric field and its formula? Electric field […]