hosein
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 School:
 university of Zanjan,iran
 About:
 all of the world is under domination of physics
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Questions Answered

hosein:
Group Title
what's meaning of this diagram?
 updated 2 years ago
 4 replies
 3 Medals
Mathematics

shelbybaby25:
Group Title
If an 10 kg object has a potential energy of 125 J, what velocity would it be right before it hit the ground?
Answer
250 m/s
…
 updated 2 years ago
 3 replies
 4 Medals
Mathematics

sharifah:
Group Title
(Newton's Law of Motion) A mass of 8 kg and another of 12 kg are suspended by a string on either side of a frictionless pulley. Find the acc…
 updated 2 years ago
 2 replies
 No Medals Yet
Mathematics

kylie0107:
Group Title
A 45 gram golf ball is projected with speed 13m/s at an angle of 60 degrees above horizontal from a height of 3m above the level ground. Ca…
 updated 2 years ago
 4 replies
 No Medals Yet
Mathematics

sandra22:
Group Title
An object with mass of 2 kg is moving along a horizontal surface with a velocity components vx= 5m/s and vy= 2.5m/s. What is the objects sp…
 updated 2 years ago
 1 reply
 1 Medal
Mathematics

amyvincent12:
Group Title
A block is at rest on an inclined plane whose elevation can be varied. The coefficient of static friction is μs= 0.350, and the coefficient …
 updated 2 years ago
 6 replies
 2 Medals
Mathematics

kagarcia:
Group Title
A wheel of radius 27 cm, mass 4 kg, and
moment of inertia 0.1458 kg*m^2 is mounted
on a frictionless, horizontal axle as shown. A
…
 updated 2 years ago
 8 replies
 No Medals Yet
Mathematics

igbona:
Group Title
a flower pot falls from rest to the ground below. if the mass of the pot is m and its initial energy height is h, which statement below is …
 updated 2 years ago
 4 replies
 1 Medal
Mathematics

Dumboy:
Group Title
Two masses are connected by a pulley as shown on the right. Mass 2 is on an incline (w/ a coefficient of static friction μs which forms an a…
 updated 2 years ago
 7 replies
 No Medals Yet
Mathematics

aniesza:
Group Title
6. Find the moment of inertia of a uniform disc of radius a about an axis perpendicular to its plane passing through a point on its circumfe…
 updated 2 years ago
 1 reply
 No Medals Yet
Mathematics

aniesza:
Group Title
5. Find the moment of inertia of a uniform ring of radius r and mass M about a tangent.
 updated 2 years ago
 1 reply
 No Medals Yet
Mathematics

robots_rock:
Group Title
what is the formula for gravity?
…
 updated 2 years ago
 6 replies
 6 Medals
Mathematics

prettychill:
Group Title
For a constant resistance, how are potential difference and current related?
 updated 2 years ago
 1 reply
 No Medals Yet
Mathematics

sk8teroy:
Group Title
Why is gravitational potential negative?
 updated 2 years ago
 11 replies
 7 Medals
Mathematics

nath:
Group Title
vectors please help
 updated 2 years ago
 18 replies
 2 Medals
Mathematics

heena:
Group Title
a string is wrapped around a cylinder of mass M and radius R. the string is pulled vertically upwards to present the centre of mass from fa…
 updated 2 years ago
 21 replies
 7 Medals
Mathematics

igbona:
Group Title
An Olympic bobsled starts from rest and slides down a frictionless 9.00 slope. a) what is the final velocity after 18 seconds?
 updated 2 years ago
 9 replies
 2 Medals
Mathematics

UnkleRhaukus:
Group Title
How does new scientist manage to get this published? 4 out of the 7 equations are incorrect .http://www.newscientist.com/articleimages/mg21…
 updated 2 years ago
 3 replies
 2 Medals
Mathematics

UnkleRhaukus:
Group Title
can you draw/explain the mechanism for a r^{6} force field equation
 updated 2 years ago
 1 reply
 No Medals Yet
Mathematics

ashley4328:
Group Title
If you were to push the ball up the ramp, it would go up, slow down, and then come down the track again. Is there a point where the speed of…
 updated 2 years ago
 5 replies
 2 Medals
Mathematics

Mercker:
Group Title
A tractor with two trailers moves at a constant speed on a straight level road. The mass of the tractor is 5000kg and the mass of each trail…
 updated 2 years ago
 3 replies
 2 Medals
Mathematics

StumpedOwl:
Group Title
Please help me!!
Which of the following describes the charge of an atom before any electrons are transferred?
…
 updated 2 years ago
 5 replies
 2 Medals
Mathematics

heena:
Group Title
a thin uniform rod of length l and mass m is swinging freely about a horizontal axis passing through its end. its maximum angular speed is w…
 updated 2 years ago
 20 replies
 4 Medals
Mathematics

brub:
Group Title
The two charges in the figure below are separated by a distance d = 1.00 cm, and Q = +7.20 nC.
(a) Find the electric potential at A.
…
 updated 2 years ago
 2 replies
 No Medals Yet
Mathematics

AJTurnbull:
Group Title
the normal force acting on a box on an inline is M(9.8sine(theta)?
 updated 2 years ago
 6 replies
 No Medals Yet
Mathematics

MHAMMED:
Group Title
help plz ..
 updated 2 years ago
 10 replies
 3 Medals
Mathematics

AJTurnbull:
Group Title
to find the normal force acting on the car on a roller coaster at the bottom of curve all it is the gravity right (will draw picture)
 updated 2 years ago
 4 replies
 2 Medals
Mathematics

donaldglclarkiii:
Group Title
Two objects are connected by a light string that passes over a frictionless pulley as shown in the figure below. Assume the incline is frict…
 updated 2 years ago
 3 replies
 2 Medals
Mathematics

ashstaaa123:
Group Title
if the mass of an objet was 325g calculate the centripital force acting on the object when the radius is 2.2metres. the object is being spun…
 updated 2 years ago
 2 replies
 1 Medal
Mathematics

hosein:
Group Title
find electric field in origin with below density function:
 updated 2 years ago
 11 replies
 4 Medals
Mathematics
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