Answer:
B. During condensation, the heavier elements tended to sink nearer the Sun and, being rare, only provided enough material to build the relatively small terrestrial planets.
D. During the collapse of the gaseous nebula, most of the material tended to collect far from the Sun because of the large centrifugal forces, which provided the necessary material to build the large Jovian planets.
Explanation:
The solar nebular hypothesis is the theory of how the earth came to be as proposed and believed by most scientists. It states that the solar system was formed from a nebular which is a large collection of dust. As the condensation of the nebular progressed, the heavier materials which could withstand higher temperatures formed closer to the sun. Because these materials were not so much the planets formed by them were not large in size.
However, the Jovian planets formed beyond the frost line which could sustain icy compounds. The ices that formed these planets were much thus accounting for their larger sizes. Solar winds blew off the lighter hydrogen and helium elements leading to their accumulation far away from the sun.
Answer:
(a) In the direction of velocity
(b) E = - 639.84 N/C
Solution:
As per the question:
Speed of the electron,
= 0.1% c
where
c = 
Thus

Distance, x = 4.0 cm
Now,
(a) The direction of the electric field is the same as that of the velocity.
(b) The electric field strength can be calculated as:
By Kinematics eqn:


Electric field strength can be calculated as:

Also,
F = ma
m = mass of electron = 
q = charge on electron =
Thus

E = - 639.84 N/C
Thank you for posting your question here. Below is the solution:
fbeat = (f' - f) / 2
<span>then </span>
<span>f' = 2 fbeat + f = 4.126 Hz </span>
<span>also </span>
<span>f' = f vs / (vs - v) </span>
<span>then </span>
<span>v = (f' - f) vs / f' </span>
<span>v = (4.126 - 4)*340 / 4.126 = 10.383 m/s</span>
the answer is (c) because if you say

Answer: material that loses electrons becomes positively charged
Explanation: electrons can be made to move from one object to another.protons do not move because they are tightly bound in the nuclei of atoms so the material that loses electrons becomes positively charged