Physics - January 2007

a- linear momentum
b- angular momentum
c- kinetic energy
d- potential energy

2007-01-31 01:55:07 · 4 answers · asked by Jac A 1

a- potential energy
b- kinetic energy
c- rest energy
d- momentum

2007-01-31 01:52:48 · 2 answers · asked by Jac A 1

When they have fallen halfway down, the have the same
a-speed
b-potential energy
c-kinetic energy
d-rest energy

2007-01-31 01:50:19 · 5 answers · asked by Jac A 1

a- is the correct formula if v is properly interpreted
b- always gives too high a value
c- is the low-speed approximation to the correct formula
d- is the high-speed approximation of the correct formula

2007-01-31 01:46:02 · 4 answers · asked by Jac A 1

a- is the same everywhere in the universe
b- depends only upon its mass
c- depends only upon the acceleration of gravity
d- depends upon both its mass and the acceleration of gravity

2007-01-31 01:40:42 · 5 answers · asked by Tami B 1

2007-01-31 01:39:08 · 8 answers · asked by pelican watcher 2

of the following of the object's properties?
a- speed
b- acceleration
c-kinetic energy
d-potential energy

2007-01-31 01:32:56 · 6 answers · asked by Tami B 1

help and give me a good topic for my investigatory report in physics..i'm in grade 10..need answers,ASAP..thanks..

2007-01-31 01:14:21 · 2 answers · asked by louisedares 2

i just started physics this semester and i feel kinda lost... if there is a physics genious or teacher that could tell me a good site to go to that would be great thanx.

2007-01-31 00:53:31 · 2 answers · asked by enahs 1

2007-01-30 23:41:24 · 14 answers · asked by ssenyonjo p 1

2007-01-30 23:16:54 · 7 answers · asked by search2seek 1

A cyclist traveling on a bicycle at a rate of 5ft/s is approaching an intersection. When the cyclist is 50m away from the intersection, a car traveling at a rate of 30ft/s crosses the intersection. The bicycle and the car are on roads that are at right angles with each other. How fast is are the bicycle and the car separating 2 seconds after the truck leaves the intersection?

2007-01-30 23:10:28 · 5 answers · asked by Anonymous

mosquito will acquire trains velocity....

2007-01-30 23:09:36 · 17 answers · asked by pravin 1

Given the discoveries about the universe through quantum mechanics, that reality a wave of probability that collapses when observed and that the observed reality produced is a creation of the observer, can we safely say that reality and the observer are one and the same? Does this not parallel every wisdom tradition in recorded history?

2007-01-30 23:05:46 · 7 answers · asked by james h 1

it gets velocity of train...

2007-01-30 23:05:22 · 10 answers · asked by pravin 1

if i have 10 magnets in a bracelet, each has a power of 2000 gauss, does that mean the total power of my bracelet is 20000 gauss or 2000 gauss???

2007-01-30 22:36:17 · 1 answers · asked by JO 2

2007-01-30 22:14:44 · 6 answers · asked by mang jose 1

i am writing a physics report on the use of CCDs and photo film in astronomy, i have done most of it but i am completely stuck on explaining what linearity is. Can someone give me a COMPLETE explanaition of what it is how it works etc. and put it in words that i will understand (cos there are plenty of places i could go if i wanted to be confused). Thanks to anyone that can help, i need it!

2007-01-30 21:19:11 · 4 answers · asked by Anonymous

i made this project for my class 12 c.b.s.e. examination. i m getting screwed....how do i prepare for d viva?????help!

2007-01-30 21:07:02 · 2 answers · asked by strangely.disturbed 1

http://www.aapt.org/Contests/pc04full.cfm?Meeting=SM04&Category=Special%20Award&Placing=54

it's about physics, by the way

2007-01-30 21:04:51 · 4 answers · asked by sfaye_hart 3

Q. What amount of force must be applied by the elbow flexors inserting at an average perpendicular distance of 0.015m from the axis of rotation at the elbow over a period of 0.3seconds to stop the motion of the 3.5kg lower arm swinging downwards with an angular velocity of 5.0rad/s when the radius pf gyration for the lower arm is 0.20m? Prove by calculating.

Possible solutions:
1) T = F * d and F = ma, for a use g (9.81m/s/s)
2) T = F * d, and F = ma, for a use 5rad/s / 0.3s
3) T.t = Δ I ω and I = mr²

Which one is correct?! Thanks.

2007-01-30 20:30:09 · 4 answers · asked by grace300182 1

2007-01-30 18:56:59 · 2 answers · asked by Kendy 2

A dry cleaner throws a 22kg bag of laundry onto a stationary 9kg cart. The cart and the laundry bag begin moving at 3 m/s to the right. Find the velocity of the laundry bag before the collision.

2007-01-30 18:53:57 · 3 answers · asked by Some Guy 2

2007-01-30 18:38:33 · 7 answers · asked by Anonymous

A rope is tied to the top of a 10 m flagpole, the rope is tensioned to 120 N, then tied to straight stick in ground 20m from bottom of pole. The ground is level. Find the vertical and horizontal component of force applied at the top of the flagpole.

ALSO

The howv roof truss shown is subjected to wind loads as shown. Wind loads are perpendicular to inclined cords. Resolve each force into vertical and horizontal components.

The wind loads are 2, 4, 2 kilo lbs. And its 12 in. tall and 48 in. across.

2007-01-30 17:44:35 · 1 answers · asked by Anonymous

2007-01-30 17:08:48 · 18 answers · asked by ernesto 1

i have a few problems left and i need some help with them:
1.) The following forces act on an object resting on a level, frictionless surface. 10 N to the north, 20 N to the east, 10 N at an angle 40 degrees south of east, and 20 N at an angle 50 degrees west of south. Find the magnitude and direction of the resultant force acting on the object.
2.)The following horizontal forces act on an object: A.) has a magnitude of 6.0 N and is in the + y direction; B.) has a magnitude of 10.0 N and is in the - x direction; C.) has a magnitude of 8.0 N and is at an angle of 45 degrees clockwise from hte + x direction. Find the magnitude and direction of A + B - C.
3.) The vector A has a magnitude of 10 cm and points 37 degrees clockwise from the + y direction. The vector B has a magnitude of 10 cm and points 37 degrees clockwise from the + x direction. Find the magnitude and direction of A + B, A - B, and B - A.

2007-01-30 17:04:28 · 1 answers · asked by Anonymous

Two ropes are attached to the screw eye hook in this picture. Rope B is being pulled with a force of 100N at an angle of 15 degrees to the y-axis. Rope A is being pulled with a force of 50 N at an angle of 20 degrees to the x-axis. Find the x and y components of the resultant force, F


I can't figure it out

2007-01-30 17:04:28 · 2 answers · asked by devilmaycry42 2

What is the basic theory?
How many G could be generated?

2007-01-30 16:32:29 · 4 answers · asked by Anonymous

http://www.webassign.net/sercp/p8-29alt....
m1= 3 kg m2= 2kg m3= 4kg m4= 2kg

(a) Find the moment of inertia of the system about the x axis
b) Find the moment of inertia of the system about the y axis.
(c)Find the moment of inertia of the system about an axis through O and perpendicular to the page.

2007-01-30 16:27:53 · 1 answers · asked by mitu 2