Physics - October 2006

I've read some where, ,that heat can go up to millions of degrees. But cold can drop just up to certain degree, witch is 275C if i am not mistaken?

2006-10-25 11:45:32 · 6 answers · asked by Catinaz 1

I need help in Physics beacuse i have a final tommor on the first 5 chapters and i don't know it anything i know little plz help me i need to practice as much as i can plz help me any good web site

2006-10-25 11:41:54 · 3 answers · asked by killerpunjabi2008 1

Does the temperature of water affect the time it takes for the water to freeze? This is a question of an investigate project to a scientific fair.

2006-10-25 11:17:14 · 13 answers · asked by Eileen C 1

Ok, let's take the one hand clapping riddle. Now say you try to clap wiht on hand your han di smoving back and forth. We can all agree that sound is created when the partivcles around the moving (or vibrating) object, vibrate, right? Now, why when you move or "clap with one hand' why is there no sound created? Aren't you moving paricles? I know this is probably a really simple question to answer.. but.. hey.. i don't know. lol

2006-10-25 11:07:32 · 11 answers · asked by Psychedelic Worm 3

9. A rocket is launched at an angle of 53.0 degrees above the horizontal with an inital speed of 100 m/s. It moves 3.00 sec along its initial line of motion with an acceleration of 30.0 m/s^2. A this time its engines fail and the rocket proceeds to move as a free body. Find (a) the maximum altitude reached by the rocked, (b) its total time flight, and (c) its horizontal range.
I think I get C but I have no clue about how to solve A and B.

2006-10-25 10:50:55 · 5 answers · asked by Sheyna 1

A street lamp weighs 150 N . It is supported equally by two wires that form an angle of 106 degrees with each other. What is the tension of these wires in Newtons?

2006-10-25 10:48:40 · 2 answers · asked by Derrick Z 1

2006-10-25 10:41:14 · 2 answers · asked by goring 6

And then will I have to re-live today?

2006-10-25 10:39:09 · 9 answers · asked by MЯ BAIT™ 6

8). A ball is projected horizontally from the edge of a table that is 1.00 m high, and it strikes the floor at point 1.20 m from the base of the table. (a) what is the intial speed of the ball? (b) How high is the ball above the floor when its velocity vector makes a 45 degree angle with the horizontal?


I found A to be 2. 67 m/s ... I dont get and don't know how to do B ... Help

2006-10-25 10:36:19 · 5 answers · asked by Sheyna 1

covers a distance of 71 m in 5.9 s. If the diameter of a tire is 43 cm

A) What is the angular acceleration of the wheel in rad/s^2?

B) What is the final angular velocity of one of the car's wheels in rad/s?

C) Total number of rotation of the wheel?

2006-10-25 10:18:45 · 1 answers · asked by Mariska 2

2006-10-25 10:09:06 · 4 answers · asked by Anonymous

A street lamp weighs 150 N . It is supported equally by two wires that form an angle of 106 degrees with each other. What is the tension of these wires in N?

2006-10-25 09:58:00 · 3 answers · asked by Anonymous

2006-10-25 09:54:12 · 5 answers · asked by ct 2

Kindly search for me?

2006-10-25 09:39:30 · 15 answers · asked by Anonymous

2006-10-25 09:37:19 · 5 answers · asked by Anonymous

flight if flying to newyork for the big broadwat debut.If the plane heads out of los angles with the velocity of 220m/s in a northeast directio,relative to the ground and encounters a wind blowing head on at 45m/s what is the resultant velocity of the plane,relative to the plane?
vectors
please show me with diagram

2006-10-25 09:21:15 · 4 answers · asked by cool 1

A sprinter who weighs 670 N runs the first 7.0 m of a race in 1.6 s, starting from rest and accelerating uniformly. What are the sprinter’s (a) speed and (b) kinetic energy at the end of the 1.6 s? (c) What average power does the sprinter generate during the 1.6 s interval?

2006-10-25 08:39:15 · 1 answers · asked by Anonymous

I'm thinking perhaps of imaginitive analogies that requires little mathematical knowledge

2006-10-25 08:32:33 · 5 answers · asked by Anonymous

a 17 cm diameter & may be approximated as a thin spherical shell. How long will it take for a basketball starting from rest to roll without slipping 3.1 m down an incline with an angle of 74.7 degrees with the horizontal (in units of s)?

2006-10-25 08:19:12 · 2 answers · asked by Dee 4

2006-10-25 08:05:42 · 2 answers · asked by . 3

with a mass of 3.49 kg and a radius of 0.075 m starts from rest at a height of 3.60 m and rolls down a 43.8 degree slope. Acceleration of gravity is 9.81 m/s^2.

What is the translational speed of the cylinder when it leaves the incline in units of m/s?

2006-10-25 07:58:21 · 1 answers · asked by Anonymous

2006-10-25 07:45:59 · 14 answers · asked by Anonymous

2006-10-25 07:44:00 · 24 answers · asked by Anonymous

(O2) rotating in the xy plane about the z axis passing through its center, perpendicular to its length. The mass of each oxygen atom is 2.66 x 10^ -26 kg, at room temperature, and the average separation distance between the two oxygen atoms is 2.02 x 10^ -10 m (atoms treated as point masses).

If the angular speed of the molecule about the z axis is 5.61 x 10^12 rad/s, what is its rotational kinetic energy in units of J?

2006-10-25 07:38:39 · 4 answers · asked by Mariska 2

I'm doing a paper for my physics class and my topic is conservation of Energy is Important. What need is your opinion on Conserving Energy and where I can get more information about this "important topic"

2006-10-25 07:13:33 · 4 answers · asked by babyjay_babyjae 2

2006-10-25 07:00:04 · 8 answers · asked by robertrobinson7 1

Talking about dropping small spheres (such as ball bearings) through different viscositys of liquids such as "washing up liquid", "cooking oil" and "water":

Does anyone know a formulae or relationship that might apply to this?

2006-10-25 06:55:35 · 6 answers · asked by Anonymous

Are there frequency's below Hz? What is the highest known frequency in the specturm and where is it generated from?

2006-10-25 06:07:30 · 3 answers · asked by Bmc420 3

why do a cylinder and a piston form a closed fluid system?

2006-10-25 05:04:46 · 2 answers · asked by Anonymous

2006-10-25 05:01:53 · 12 answers · asked by aali82688 2