Physics - November 2006

Please try and use your imagination. Lets say you have two objects on a table. You then move them half the distance towards each other. you then do it again and again. How many times can you do this before they touch. If you keep moving the objects half the distance to each other, they would never touch...right?

2006-11-19 02:48:14 · 8 answers · asked by Nik-Nak 3

And is it possible for something to be inexplicable?

2006-11-19 02:46:32 · 2 answers · asked by G-Man 3

2006-11-19 01:29:20 · 6 answers · asked by Arasan 7

1 kg=___pounds?

2006-11-19 01:25:13 · 3 answers · asked by Farrah Lyana 1

I have a sciemce i nned help with

2006-11-19 01:03:20 · 3 answers · asked by getalife 1

Three masses are connected together by strings. Starting from left and going right, mass 1 is 12kg, mass 2 is 24kg, and mass 3 is 31kg. The force applied to the string attached to mass 3 and is pulling right is 65N. (a) Find the acceleration of the system (b) find the tension in the string between mass 1 and mass 2 (c) between mass 3 and mass 2. Assume no friction

2006-11-19 00:38:44 · 2 answers · asked by sur2124 4

an ice cube floats in a glass of water. the ice cube contains many air bubbles. when the ice melts, will the water level in the glass rise, fall, or remain unchanged?

2006-11-19 00:14:34 · 3 answers · asked by Anonymous

2006-11-19 00:14:08 · 4 answers · asked by luis 1

Using a verner Caliper. Measure the diameter and circumference of the brass weight. Using the averag values of the diameter (d) and circumference (c), compute the value of pi in both scales using the equation: pi = c/d

using a micrometer. take the reading and record as diameter of the steel ball. V= 4/3 pi R^3
where R is the radius of the steel ball and R =diameter/2

2006-11-18 23:42:33 · 3 answers · asked by jppd12689 3

2006-11-18 23:30:46 · 1 answers · asked by jppd12689 3

2006-11-18 23:28:18 · 18 answers · asked by dr_zevago e 1

2006-11-18 23:26:07 · 1 answers · asked by jppd12689 3

stephen scott

2006-11-18 22:35:20 · 1 answers · asked by klaartedubois 4

2006-11-18 22:06:29 · 3 answers · asked by Anonymous

2006-11-18 21:13:53 · 3 answers · asked by Anonymous

2006-11-18 21:08:29 · 3 answers · asked by JAMES 4

2006-11-18 20:53:43 · 4 answers · asked by Nanu 1

2006-11-18 20:33:24 · 5 answers · asked by christine joy t 1

(Air is fooling our eyes ?)

2006-11-18 20:32:33 · 3 answers · asked by Anonymous

2006-11-18 20:28:58 · 7 answers · asked by anantseam85 1

I will reward any good help with ten points.
This is part of my physics take home quiz. I worked them out but I just want confirmation to see if what I got is right.

A box rests on the (horizontal) back of a truck. The coefficient of Static friction b/w box and truck is 0.24. What maxmum distance can the truck travel (starting from rest and moving horizontally with constant acceleration) in 3.0 s without having the box slide?
I got 11 meters.

A 0.14 km wide river flows with uniform speed of 4 m/s toward east. It takes 20 s for a boat to cross to a point directly north of its starting point on the south bank. What is speed of boat relative to water? I got 8.1 m/s

Now, help me with thiz one. If the resultant force acting on a 2.0 kg is equal to (3i + 4j)N, what is the change in Kinectic energy as the object moves from (7i - 8j) m to (11i - 5j) m?
The answers are
a. 36 J b. 28J c. 32J d.24J 60J

2006-11-18 20:02:38 · 3 answers · asked by Will 2

2006-11-18 18:57:08 · 4 answers · asked by Anonymous

This is one question.. A sled weighing 60.0 N is pulled horizontally across snow so that the coefficient of kinetic friction between the sled and the snow is .100. A penguin weighing 70.0 N rides on the sled. If the coefficient of static friction between the penguin and the sled is .700, find the maximum horizontal force that can be exerted on the sled before the penguin begins to slide off.

2006-11-18 17:57:12 · 2 answers · asked by Anonymous

2006-11-18 17:47:58 · 3 answers · asked by anusha 1

2006-11-18 16:24:32 · 2 answers · asked by daniel 1

How many newtons are in a kilogram?

2006-11-18 15:40:20 · 5 answers · asked by Anonymous

2006-11-18 15:21:40 · 4 answers · asked by sam54 1

A few physics questions?
I'm working on completeing a physics assignments and have found myself lost. Here is the information I have been given:

Car 1 approached the intersection from the top of a 25-meter hill.
∙ Car 2 was on a flat stretch of road directly in front of Car 1.
∙ At the bottom of the hill, before braking for the stop sign, Car 1 was going 20 m/s
and Car 2 was going 30 m/s before it stopped at the stop sign.
∙ From the skid marks on the road you can see that Car 1 applied force on its brakes
for 3 seconds, 100 meters before the stop sign.
∙ There were no skid marks left by Car 2. The collision occurred at the stop sign,
where Car 2 had stopped.
∙ After the collision, both cars were moving together in the same direction at 10 m/s,
before slowly rolling to a stop.
You must now push Car 2, using 800 N of force, 10 meters off to the side of the road so
no one else gets hurt.

I have run out of characters to use, so if you can help me, PLEASE email me!

2006-11-18 14:42:27 · 2 answers · asked by BadRomance 2

if your looking outside how far can a person see in a distance?

2006-11-18 14:11:51 · 7 answers · asked by Timthetoolman 1

An airplane traveling 1001 m. above the ocean at 125 km/h is going to drop a box of supplies to shipwrecked victims below.

a. how many seconds before the plane is directly overhead show the box be dropped?

b. What is the horizontal distance between the plane and the victims when the box is dropped?

This problem is giving me trouble.

I don't understand part a, and even more so part b.
Please help.

2006-11-18 13:53:39 · 4 answers · asked by swimmertommy 1