Physics - September 2006

The longest recorded skid marks on a public road were left by a jaguar in a 1960 auto accident in USA and measured an astounding 290 m long. Assuming that the car had an average accelaration of -3.9 m/s^2 determine the jaguar's initial speed before the skid started.

2006-09-14 09:19:06 · 4 answers · asked by Hamza 1

One 2.00 kg paint bucket is hanging by a massless cord from another 2.00 kg paint bucket also hanging by a massless cord.

If the buckets are at rest what is the tension in the lower cord?

What is the tension in the upper cord?

If the two buckets are pulled upward with an acceleration of 1.48 m/s^2 by the upper cord, what is the tension in the lower cord?

Calculate the tension in the upper cord.

I have no idea how to go about solving these. What are the formulas to use?

2006-09-14 09:14:15 · 3 answers · asked by beautyqueenjustine 3

When moving faster than 30mph motorcycles turn in the opposite direction as the handlebars are pointed. What is the physical explanation for this?

2006-09-14 08:25:19 · 7 answers · asked by b.russ 1

Nature absolutely abhors a straight line. Nature works to bend, break, block, refract, reflect and skew all manner of lines segments that aspire for straightness. Every one live is familiar with line segment. But no one alive as ever seen a straight line. The purist will argue that y=mx+b is a straight line. This isn't a line. This is the representation of a line. Its a description of something that no one has ever seen. Why do we waist time teaching it to elementary kids?

the universe is curved

2006-09-14 08:20:37 · 7 answers · asked by Thoughts Like Mine 3

like a small bulb in a tiny flashlight

2006-09-14 08:19:50 · 5 answers · asked by lend322 4

2006-09-14 08:08:54 · 4 answers · asked by ? 1

When the Earth, Moon, and Sun form a right triangle with the Moon located at the right angle, as shown in the figure below, the Moon is approaching its third quarter. (The Earth is viewed here from above its north pole.) Find the magnitude and direction of the net force exerted on the Moon. Give the direction relative to the line connecting the Moon and the Sun.

2006-09-14 08:07:22 · 5 answers · asked by otsatsa3 2

2006-09-14 08:06:58 · 12 answers · asked by Anonymous

2006-09-14 07:57:32 · 13 answers · asked by Anonymous

2006-09-14 07:51:50 · 6 answers · asked by rapturefuture 7

2006-09-14 07:47:50 · 9 answers · asked by eina 2

2006-09-14 07:44:54 · 6 answers · asked by christopher s 1

I know about just one way that by using a conductive cover, and making the current in the cover, we can isolate inside the cover.
But I think in this way, we should access to the earth, but in the case we don't access directly to the earth (or access is throgh a high resistance material), is there any alternative way? (maybe not using conductive material?)

2006-09-14 07:31:37 · 4 answers · asked by Anonymous

im thinking this. air being foced into a chamber with water inside and blown directly onto water, then the air being forced out of another tube. im hoping that the air that is passed through the chamber and onto the water will come out of the tube chilled. well colder, hopefully as cold as possible.

im basing this as the air will open up in a chamber like an expansion chamber, pass over the water (for some reason i beleive this will cool it some how) and the air will be forced back out of the tube cooler than before.

the air will be coming through the first tube with some velocity, of approx 50mph. so im figuring that it will push the air back out of the vacant tube. the chamber will obviously be sealed so that there will only be one way for the air to go.

but im no scientist, will this chilling happen?

2006-09-14 07:26:03 · 5 answers · asked by the dogone dog 2

2006-09-14 06:57:20 · 7 answers · asked by eina 2

I think you have to use relativity, because there are 31,536,000 seconds in a year, and g = 10m/s/s, so if you were to use Newtonian equations you'd be going faster than the speed of light (300,000,000 m/s). So how do you do this???

2006-09-14 06:43:08 · 6 answers · asked by Anonymous

Is it saying that the cat REALLY CAN be half alive and half dead, or it saying something more like:

"subatomic particles behave than the macro-objects we observe and which we would find difficult to intuit. It would be like if a cat could be half alive and half dead at the same time."

2006-09-14 06:26:15 · 5 answers · asked by Anonymous

If there are, are they scientists also?.... and have they written about there grand-parents lives like the Curies daughter did?

2006-09-14 05:56:47 · 1 answers · asked by Richard A 1

none

2006-09-14 05:41:39 · 1 answers · asked by SphinxEyez999 2

Bachelor of science(physics&mathematics) final year student

2006-09-14 05:17:29 · 5 answers · asked by General Lee 1

2006-09-14 04:59:21 · 16 answers · asked by Anonymous

2006-09-14 04:44:23 · 3 answers · asked by Anonymous

2006-09-14 04:36:36 · 5 answers · asked by vijai k 1

2006-09-14 04:24:03 · 16 answers · asked by cragoogle 1

So I'll hear that the theory implies that certain things like the position and velocity of particles has degrees of uncertainty. Okay, fine. What I want to know, is does this imply deep-seated philosophical uncertainty about the world we live in, or does it merely suggest that the fundamental building blocks of the universe are not the solid newtonian atoms are monkeyu-minds perception of the world finds intuitive? In other words, rather than things being uncertain, they merely exist as probability distributions which still follow strict mathematical scientific rules, albeit ones nonintuitive to our minds?

2006-09-14 04:23:38 · 9 answers · asked by Anonymous

2006-09-14 04:20:51 · 5 answers · asked by shrestha692 1

2006-09-14 04:02:40 · 9 answers · asked by Anonymous

2006-09-14 03:44:59 · 4 answers · asked by wildbutterflychick 2

without opening the boxes?

2006-09-14 03:41:11 · 11 answers · asked by wildbutterflychick 2

2006-09-14 03:38:33 · 16 answers · asked by niamah 1