Recent content by bolbol2054

1. Will the torque for this force = 0

torque about axis of rotation of the door left side
2. Will the torque for this force = 0

https://ibb.co/drnjDG will the torque for this force = 0 explain according to the torque relation
3. Mass difinition and protons

thank you sir
4. Mass difinition and protons

my question is Does 1 kg of iron contain the same number of protons as 1kg of aluminium,hydrogen and wood Can we define mass of matter with no of protons and neutrons it contains?
5. Embarassing question- Displacement equation

you must take in consideration difference between Average velocity and Instantaneous velocity x = vt v is average velocity x= 1/2* (V0 + V )t now v is velocity at time t

we define the ATM. pressure as the weight of cylinder of air above the earth with surface area for its base equal 1 m2 referring to this definition how could we illustrate the pressure at 1- a room with roof . 2- a room without roof . 3- vacuum room.
7. Momentum and kinetic energy

that's now clear thank you
8. Electric current

we know that electric current result of motion of electrons through aconductor and resistance result of electron's collisions with matter's nuclei resulting in heating material my question is what is the effect of positive electric field of nuclei at the motion of negative electrons ...
9. Strange behavior of the density of the water around the freezing point

yes sir thats exactly what i meant but i want to know with more diagramatic illustration the effect of molecule's shape on this behaviour i thought that such basic phenomena had a lot of discussion in previous threads
10. Strange behavior of the density of the water around the freezing point

i meant with strange behavior that water contradicts the role of decreasing density due to increasing temperatur at a range from 0 c degree to 4 c degree
11. Strange behavior of the density of the water around the freezing point

please is there a topic that discuss with illustration factor that causes Strange behavior of the density of the water around the freezing point
12. Momentum and kinetic energy

why although the equations of momentum and kinetic energy of an object contains the same symbols m and v we note in an inelastic collision that momentum unlike the kinetic energy is conserved