Answer:
i) They are equal . ii) It is thousands of times greater for the electron.
Explanation:
i) By definition, the electric field is the electric force per unit charge. If the field is the same, the force will depend on the value of the charge under the influence of the field.
As the magnitude of the charge of the electron and the proton are the same, we conclude that the electric force on both must be equal in magnitude.
ii) The acceleration on both particles must meet the Newton´s 2nd Law, so, if the forces are equal in magnitude (neglecting any other external interaction), the acceleration will only depend on the mass of both particles, according this general expression:
a = F/m
As the mass of the electron is approximately two thousands times smaller than the proton´s, it concludes that the acceleration on the electron must be thousands of times greater for the electron.
Answer:
45m
Explanation
Using third equation of motion which's vf^2 - vi^2 = 2gh in case of vertical motion so ,
step 1 : (30)^2 - (0)^2 = 2(10) h
step 2 : 900 = (20)h
step 3 : 900/20 = h
The movement of your hand is not considered vibration I think. It's just movement. Music is vibtration, your voice is a vibtration Becasue it makes sound. If I answered this question incorrectly let me know
Oil as you might notice is used in moving parts in machines.
The reason being is that oil is a smooth type of liquid.
So when machine parts are moving with oil on them, the oil allows the machine parts to move more smoothly. So when there is a squeaky noise on a moving part on a machine, mechanics/workers often put oil to make it more smooth because the moving parts are rubbing off on each other.
Answer:
E(x,t) = Emaxcos(kx - ωt + φ),
B(x,t) = Bmaxcos(kx - ωt + φ).
Explanation:
E is the electric field vector, and B is the magnetic field vector of the EM wave. For electromagnetic waves the electric field E and the magnetic field B are always perpendicular to each other and perpendicular to the direction of propagation. The direction of propagation is the direction of E x B.