The kinetic energy of the small ball before the collision is
KE = (1/2) (mass) (speed)²
= (1/2) (2 kg) (1.5 m/s)
= (1 kg) (2.25 m²/s²)
= 2.25 joules.
Now is a good time to review the Law of Conservation of Energy:
Energy is never created or destroyed.
If it seems that some energy disappeared,
it actually had to go somewhere.
And if it seems like some energy magically appeared,
it actually had to come from somewhere.
The small ball has 2.25 joules of kinetic energy before the collision.
If the small ball doesn't have a jet engine on it or a hamster inside,
and does not stop briefly to eat spinach, then there won't be any
more kinetic energy than that after the collision. The large ball
and the small ball will just have to share the same 2.25 joules.
1 - Skull
2 - Mandible
3 - Scapula
4 - Sternum
5 - Ulna
6 - Radius
7 - Pelvis
8 - Femur
9 - Patella
10 - Tibia
11 - Fibula
12 - Metatarsals
13 - Clavicle
14 - Ribs (rib cage)
15 - Humerus
16 - Spinal column
17 - Carpals
18 - Metacarpals
19 - Phalanges
20 - Tarsals
21 - Phalanges
C and d are the right answers
Answer:
Gas
Explanation:
The gas state of matter has the most energy because of how freely the molecules move
Answer:
Energy density will be 14.73 ![J/m^3](https://tex.z-dn.net/?f=J%2Fm%5E3)
Explanation:
We have given capacitance ![C=225\mu F=225\times 10^{-6}F](https://tex.z-dn.net/?f=C%3D225%5Cmu%20F%3D225%5Ctimes%2010%5E%7B-6%7DF)
Potential difference between the plates = 365 V
Plate separation d = 0.200 mm ![0.2\times 10^{-3}m](https://tex.z-dn.net/?f=0.2%5Ctimes%2010%5E%7B-3%7Dm)
We know that there is relation between electric field and potential
, here E is electric field, V is potential and d is separation between the plates
So ![E=\frac{V}{d}=\frac{365}{0.2\times 10^{-3}}=1825000N/C](https://tex.z-dn.net/?f=E%3D%5Cfrac%7BV%7D%7Bd%7D%3D%5Cfrac%7B365%7D%7B0.2%5Ctimes%2010%5E%7B-3%7D%7D%3D1825000N%2FC)
Energy density is given by