Well dark matter is , in a layman terms just a concept used to identify missing mass in the universe. (extremely simplified and probably wrong but look that up). It could be but then if it is then we would still be able to percive the matter in some form. All we know from instruments is that they have mass and absorb light. We would need more info before any conclusions but it is 100% a possibility. But remember that when someone says "3-d" for example they are talking about a certain space.. technically matter exists on all planes (at least all the planes we know of in our local universe.) The laws of the cosmos are not yet proven to be constant and even if they are what of outside it?
When you take high school physics ask your teacher.
Answer:
Ripple marks are caused by water flowing over loose sediment which creates bed forms by moving sediment with the flow. Bed forms are linked to flow velocity and sediment size, whereas ripples are characteristic of shallow water deposition and can also be caused by wind blowing over the surface.
Explanation:
Answer:
$18
Explanation:
Each of the was qiven $18
All together =24
24 divide it by 4 (because there were 4 people there)
= 6 (6+6+6+6)
= 24
=6+12=18
.Hence each of them was given $18
No isnt it decreasing to the right in a negative acceleration
Answer:
Induced current,
Explanation:
Given that,
Area of cross section of the wire, 
Time, t = 2.2 s
Initial magnetic field, 
Final magnetic field, 
Resistance of the coil, R = 8 ohms
The expression for the induced emf is given by :
= magnetic flux
So, the induced emf in the loop is 0.023 volts. The induced current can be calculated using Ohm's law as :
So, the magnitude of the induced current in the loop of wire is 
. Hence, this is the required solution.
