Recent content by cowls192

I think i mixed up with velocity. So, even though the mass seems to be "motionless" since it is not moving at constant speed, it may or may not have acceleration. For example, let's say a car hit a tree (very gently). As you hit the gas, the car is not moving beyond the tree, but it is still...

Even though the mass is not "moving", it is said to be in acceleration, just "infinitely" slow rate. Most of the matters in Earth has weight because of the gravity. If, as you say, there is no "acceleration", then it would be weightless, since F = m * a --> F = m * zero, which would simply equal...

As D H have noted, the thing about the scale is that it doesn't really use g = 9.8 (kg/s2) for calculation, as the scale is most likely a spring-based device. In that case, the scale uses F = -kx for calculation. In a sense, you can measure the "weight" by hanging the scale on the wall and...

Well, what i meant by "pure science fiction" would have to be 20 to 100 times faster than what Earth does today... :)

Here's another good example of "misuse": "Karly lost 20 pounds of weight in 3 weeks!" Well, we physical folks know that Karly really lost her "mass". Source: OpenStax College textbook (http://cnx.org/content/col11406/1.7)

Um, i forgot to point out something. I should have mentioned that at present days, the length of a second is standardized by the properties of a cesium atom. So, what this tickles me is, in the early history, did the length of a second defined by the speed of Earth's rotation? Meaning that if...

Excuse me, if i posted on a wrong forum. I heard this quite a time ago, that one day on Earth is not exactly 24 hours. And I'm pretty sure some unit charts on the back of composition books will say one day is 23.9 hours or something like that. My fantasy about how we defined the length of...

I'm going to try my best to clear up everything ppl said in this thread. SUMMARY: The "bathroom" scale MEASURES weight, in Newton (N). The same "bathroom" scale is PROGRAMMED to do the magic calculations, and DISPLAYS on its display the MASS of whatever is on the scale. For example, Jimmy...