hosein
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 university of Zanjan,iran
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 all of the world is under domination of physics
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cherrish1234:
Group Title
The figure shows the velocity graph of a particle moving along the xaxis (d=9.4, T=2.8). Its initial position is x0 = 3.4 m at t0 = 0 s. At…
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

sjiwani:
Group Title
PLEASE HELP: SIMPLE HARMONIC MOTION
A 0.77 kg object is attached to one end of a spring hanging vertically from a stand. The object is pu…
 updated one year ago
 10 replies
 1 Medal
Mathematics

sksmstut:
Group Title
In an experiment with a block of wood on an inclined plane, with dimensions shown in the figure, the following observations are made
 updated 2 years ago
 2 replies
 No Medals Yet
Mathematics

neha2050:
Group Title
A hollow metal sphere of radius 5 cm is charged such that the potential on its surface is 10 volts.The potential at the centre of the sphere…
 updated 2 years ago
 13 replies
 3 Medals
Mathematics

GL123:
Group Title
Suppose that a guitar string has a length of 1.1 m, a mass of 0.12 kg and a tension of 125 N.
What is the speed of the wave on the stri…
 updated 2 years ago
 4 replies
 No Medals Yet
Mathematics

isaidrawr:
Group Title
Which type of electromagnetic wave has more energy, an ultraviolet wave or an infrared wave?
 updated 2 years ago
 5 replies
 2 Medals
Mathematics

jorge3o5:
Group Title
Which type of electromagnetic radiation is the only type that humans can see with their eyes?
Gamma rays
…
 updated 2 years ago
 5 replies
 2 Medals
Mathematics

hosein:
Group Title
Hi
A question?
 updated 2 years ago
 6 replies
 No Medals Yet
Mathematics

Ernie714:
Group Title
As the magnetic field increase what else increases?
 updated 2 years ago
 3 replies
 2 Medals
Mathematics

khanitha:
Group Title
A piece of marble is projected from earth's surface with velocity of 50 m/s. 2 seconds later, it just clears a wall 5 m high. What is the an…
 updated 2 years ago
 14 replies
 3 Medals
Mathematics

salini:
Group Title
Boy and girl sailing on a boat(the boat mass is:25 kg), the boy mass is: 95kg and mass of the girl is smaller from boy
When the boat was a…
 updated 2 years ago
 6 replies
 2 Medals
Mathematics

JerJason:
Group Title
Suppose the coefficient of kinetic firxxtion between mass a and a plane is .10 and mass A and B is 2.7kg. As Mass B moves down, determine th…
 updated 2 years ago
 10 replies
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Mathematics

ICECREAM_HERO:
Group Title
A particle has a charge of 600µC and a mass of 0.6nkg. This particle is placed in a uniform electric field of 1200 N/M. What is the accelera…
 updated 2 years ago
 5 replies
 No Medals Yet
Mathematics

A_Level_Student:
Group Title
A horizontal force of 20N just prevents a mask of 2kg from sliding down a rough plane inclined at 45 degrees to the horizontal.Find the coef…
 updated 2 years ago
 9 replies
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Mathematics

JerJason:
Group Title
A wet bar of soap slides freely down a ramp 8.5m long inclined at 8.0 degrees. How long does it take to reach the bottom? Assume kinetic fri…
 updated 2 years ago
 3 replies
 1 Medal
Mathematics

swim6963:
Group Title
In walking across a carpet, you acquire a net negative charge of 50 µC. How many
electrons do you have?
…
 updated 2 years ago
 2 replies
 No Medals Yet
Mathematics

kymber:
Group Title
If light is polarized, it is
A. moving in all directions
B. vibrating both horizontally and vertically
…
 updated one year ago
 3 replies
 5 Medals
Mathematics

sri_mulyani:
Group Title
The surface of the water in a tank 2,5 m above its base. if there is a small hole at the base of the tank , water will flow out with velocit…
 updated 2 years ago
 7 replies
 1 Medal
Mathematics

sirenitabaila:
Group Title
In what direction are the magnetic field lines surround a strait wire carrying a current that is moving directly away from you?
 updated 2 years ago
 7 replies
 1 Medal
Mathematics

jadefalcon:
Group Title
Only two horizontal forces act on a 3.0 kg body that can move over a frictionless floor. One force is 9.0 N, acting due east, and the other …
 updated 2 years ago
 22 replies
 1 Medal
Mathematics

shefaa:
Group Title
An infinitely long line charge having a uniform charge per unit length λ lies a distance d from point O as shown in the figure below. Determ…
 updated 2 years ago
 6 replies
 No Medals Yet
Mathematics

choks:
Group Title
hi, i am chokks here.
…
 updated 2 years ago
 2 replies
 No Medals Yet
Mathematics

beth12345:
Group Title
What would be the gravitational field strength 2000km above the Earth? 50km above the Earth?
 updated 2 years ago
 39 replies
 3 Medals
Mathematics

igbona:
Group Title
A simple harmonic oscillator with m= 0.560kg and total energy E = 130J has amplitude A= 1.65m . Find the spring constant.
 updated 2 years ago
 11 replies
 2 Medals
Mathematics

mswitten:
Group Title
A 0.395kg blue bead slides on a frictionless, curved wire, starting from rest at point in the figure below, where h = 1.50 m. At point , t…
 updated 2 years ago
 9 replies
 No Medals Yet
Mathematics

sgholap100:
Group Title
what is string theory?
…
 updated 2 years ago
 5 replies
 2 Medals
Mathematics

nath:
Group Title
A loudspeaker of mass 20.0 {\rm kg} is suspended a distance of h = 2.20 {\rm m} below the ceiling by two cables that make equal angles with …
 updated 2 years ago
 1 reply
 No Medals Yet
Mathematics

mcd173:
Group Title
A skier (m=57.0 kg) starts sliding down from the top of a ski jump with negligible friction and takes off horizontally. If h = 6.20 m and D …
 updated 2 years ago
 30 replies
 2 Medals
Mathematics

Hmord:
Group Title
Question
…
 updated 2 years ago
 17 replies
 2 Medals
Mathematics

mikes:
Group Title
which of the following information would allow the most direct calculation of the average speed of the rocket on its upward flight
 updated 2 years ago
 1 reply
 No Medals Yet
Mathematics
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