homo. It is a mixture because it has different things in it. If they are distributed homogeneously ...
Answer:
The correct option is (A).
Explanation:
The direction of electric force is in the direction of electric field. The electric force acting on a charged particle is given by :
F = qE, q is magnitude of charge
We have, a negative test charge experiences a force to the right as a result of an electric field. It would mean that the electric field points to the left because the force on a negative charge is opposite to the direction of the field.
Answer:
True
False
False
Explanation:
4.True, When a positively charged object is connect to the 'ground' electrons flow from the 'ground' wire to neutralize the object.
5. False, Electrons can be influenced to move a specific way, but are free to move from atom to atom.
6. False, only electrons move from one object to another.
Answer:
a) 4.6*10^{-5} J
b) 6133.33 J/C
c) 94358.9 C
Explanation:
(a) We have that the change in the kinetic energy equals the net work over the charge. Hence we have
![\Delta E_K=W-W_E](https://tex.z-dn.net/?f=%5CDelta%20E_K%3DW-W_E)
where Ek is the kinetic energy, W is the work of the external force and WE is the work done by the electric field. By replacing we obtain:
![W_E=W-\Delta E_k=7.60*10^{-5}J-3*10^{-5}J=4.6*10^{-5}J](https://tex.z-dn.net/?f=W_E%3DW-%5CDelta%20E_k%3D7.60%2A10%5E%7B-5%7DJ-3%2A10%5E%7B-5%7DJ%3D4.6%2A10%5E%7B-5%7DJ)
(b) The potential difference is computed by using:
![\Delta V=\frac{W_E}{q}=\frac{4.6*10^{-5}J}{7.5*10^{-9}C}=6133.33\frac{J}{C}](https://tex.z-dn.net/?f=%5CDelta%20V%3D%5Cfrac%7BW_E%7D%7Bq%7D%3D%5Cfrac%7B4.6%2A10%5E%7B-5%7DJ%7D%7B7.5%2A10%5E%7B-9%7DC%7D%3D6133.33%5Cfrac%7BJ%7D%7BC%7D)
(c) With the work done by the electric force we can calculate the Electric field. By using the following formula we obtain:
![W_E=qEd\\\\E=\frac{W_E}{qd}=\frac{4.6*10^{-5}J}{(7.5*10^{-9}C)(6.50*10^{-2}m)}=94358.9\frac{N}{C}](https://tex.z-dn.net/?f=W_E%3DqEd%5C%5C%5C%5CE%3D%5Cfrac%7BW_E%7D%7Bqd%7D%3D%5Cfrac%7B4.6%2A10%5E%7B-5%7DJ%7D%7B%287.5%2A10%5E%7B-9%7DC%29%286.50%2A10%5E%7B-2%7Dm%29%7D%3D94358.9%5Cfrac%7BN%7D%7BC%7D)
where we have used d=6.5cm=6.5*10^-9m and q=7.5nC=7.5*10^-9C
hope this helps!!
Divergent boundaries usually occur when two tectonic plates or more pull away from each-other causing the empty spaces to fill with magma or water. Tectonic plates interact with each-other in many different ways, they can move towards one another (converge), or move away from one another (diverge), or slide past one another (transform)... These movements occur during earthquakes.