Physics - November 2006

2006-11-02 10:26:35 · 8 answers · asked by Anonymous

2006-11-02 10:26:20 · 6 answers · asked by Anonymous

In a right triangle, the ratio of the hypotenuse to the shorter leg is 3 to 1. The length of the longer leg is 5'. Find the length of the shorter leg.

2006-11-02 10:24:20 · 1 answers · asked by Levi M 1

If you fire a custom 82mm Bazooka at a mosquito 5cm away from you with a semi-nuclear hydrogen enhanced warhead, what will be the results?

2006-11-02 10:23:25 · 6 answers · asked by Theo 2

I need to know what mechanical energy can be converted into. Like an example is thermal energy - light energy. I need a form of energy than mechanical can be converted into. This is kind of a dumb ? but please help.

2006-11-02 10:19:14 · 4 answers · asked by Anonymous

2006-11-02 10:17:17 · 4 answers · asked by prashant s 1

2006-11-02 10:08:38 · 6 answers · asked by Anonymous

This is a completely hypothetical question.. If a 400 lb flying beast was arcing towards a gunman, flying at a speed of 60 mph from a distance of 30 feet, would a slug from a .63 LeMat revolver that blew off its head change the trajectory of the flight?

2006-11-02 10:03:41 · 2 answers · asked by sincarnato 3

Einstein thought outside the box of time and space...

Are there any other boxes left?

2006-11-02 10:01:07 · 10 answers · asked by Anonymous

Need help, ive been working on this problem all day, please just help me!

A particle leaves its origin with a velocity of 4 i m/s and a constant acceleration of ( -2 i + .5 j ) m/s^2. At the time the particle reaches its maximum X coordinate (a) what is the velocity? (b) what is its position vector?

Please Help, Serious answers please!

2006-11-02 09:55:57 · 1 answers · asked by sur2124 4

To find the height of building, you observe that a yard stick held vertically on the ground cast a shadow of 42 1/2". At the same time, the building cast a shadow which is measured at 57' - 7 3/4". How tall is the building?

2006-11-02 09:55:02 · 1 answers · asked by Levi M 1

Given that one object is 78 kg and the other is 103 kg; the two objects are in contact and at rest on a horizontal surface; a 733 N force is exerted on the 78 kg object.... I know the formula is F of mass 2 on mass 1 = F - force of friction - ma, but I can't find the force of friction.... can someone show me the light?

2006-11-02 09:43:26 · 3 answers · asked by abc123 1

the blades in a blender rotate at a rate of 6500rmp.
when the motor is turned off durinf operation, the blades slow to rest in 3,0s what is the angular acceleration as the blades slow down?

2006-11-02 09:32:41 · 3 answers · asked by nice_ girl 1

Fred (mass 75 kg) is running with the football at a speed of 5.3 m/s when he is met head-on by Brutus (mass 120 kg), who is moving at 4.0 m/s. Brutus grabs Fred in a tight grip, and they fall to the ground. How far do they slide? The coefficient of kinetic friction between football uniforms and Astroturf is 0.30.

I have:

P1 = (75)(5.3) = 397.5
P2 = (120)(-4.0) = -480

Total Momentum System: 5.3m - 4.0m = 0.7m


I am lost as to where to go from there. Do I need the sum of forces in the x-direction?


Thanks

2006-11-02 09:28:54 · 3 answers · asked by Anonymous

i want to know the RELATIONSHIP bewteen them and NOT their differencesand do not give me the meaning of each.

2006-11-02 09:21:35 · 8 answers · asked by Ms. Inquisitive 2

in a horizontal circle at the end of a string (length = 3.2 m) at an angular velocity of 11.5 rad/s. The string is gradually shortened to 2.7 m without any force being exerted in the direction of the ball's motion.

Find the new angular velocity of the ball in rad/s. And find it's new linear speed in units of m/s.

2006-11-02 09:14:44 · 1 answers · asked by Anonymous

Which lens would have a greater focal length and why? A thick lens or thin lens?

2006-11-02 09:12:20 · 2 answers · asked by Anonymous

how did Sir Issac Newton revolutionized the thinking of his timeand provided the foundation for the understanding of the relationship between force and motion,as well as how future generation were affected by this work..

2006-11-02 09:05:57 · 3 answers · asked by rose 2

how many seconds does it take :
1,(for a rocket) lighting the fuse and exploding in the sky
2,(for a catherine wheel) light the fuse and start spinning

any other timings would be greatful.

2006-11-02 08:52:25 · 5 answers · asked by Anonymous

I really dont get projectile motion, here is a sample problem, can u guys help me (seriously)

An airplane is diving at a speed of 83.3 m/s, and the angle between the plane's dive path and the vertical is 50 degrees. the plane launches a rocket which lands at 750m horizontally from beneath the launch point. (a) find the flight time of teh rocket (b) how high was the release point?


PLEASE HELP ME! I'M REALLY STUCK!

2006-11-02 08:27:47 · 5 answers · asked by sur2124 4

2006-11-02 08:21:53 · 8 answers · asked by Jennifer H 1

2006-11-02 08:20:11 · 8 answers · asked by forest lover 2

2006-11-02 07:42:32 · 3 answers · asked by lilv 1

What is the name of that mechanism that consists of 4 balls that if you take the first one to beat the others then the last one is rebounding and so on.The first and the last ball are rebounding each other continually. Iheard it
s the potential enegy that causes that.

Please if you know respond because it is very IMPORTANT for me. THANK YOU !

2006-11-02 07:29:35 · 3 answers · asked by Narrator 3

The coefficient of friction is usually less between two surfaces when one or both surfaces are wet. What, on a microscopic level, is causing this?

2006-11-02 07:18:41 · 3 answers · asked by Take it from Toby 7

Using my body weight how do I determine the mass of planet earth?

2006-11-02 07:06:10 · 3 answers · asked by Anonymous

2006-11-02 06:51:25 · 4 answers · asked by swt_gls 1

A skier traveling 12.4 m/s reaches the foot of a steady upward 17.4° incline and glides 13.9 m up along this slope before coming to rest. What was the average coefficient of friction?

How would solve this?

2006-11-02 06:51:16 · 3 answers · asked by Isabel G 1

2006-11-02 06:48:53 · 3 answers · asked by mahan 1

Is there proof that motion is radial?The motion of mass structures in our galaxy dont move radialy but in a spiral as is the case of our solar system?

2006-11-02 06:43:51 · 1 answers · asked by goring 6