Answer:
Vf=3
Explanation:
you must first write your data
data before impact
M1=1000 M2=5000
V1=0 m/s V2 =0m/s
data after impact
M1=1000 M2=5000
V1=15m/s V2=?
M1V1 +M2V2=M1V1 +M2V2f
(1000)(0)+(5000)(0)=(1000)(15)+(5000)Vf
0=15000+5000Vf
- 15000÷5000=5000Vf÷5000
Vf= -3
Vf =3
Answer:
4 A
Explanation:
We are given that
![R_1=R_2=R_3=4\Omega](https://tex.z-dn.net/?f=R_1%3DR_2%3DR_3%3D4%5COmega)
I=12 A
We have to find the current flowing through each resistor.
We know that in parallel combination current flowing through different resistors are different and potential difference across each resistor is same.
Formula :
![\frac{1}{R}=\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7BR%7D%3D%5Cfrac%7B1%7D%7BR_1%7D%2B%5Cfrac%7B1%7D%7BR_2%7D%2B%5Cfrac%7B1%7D%7BR_3%7D)
Using the formula
![\frac{1}{R}=\frac{1}{4}+\frac{1}{4}+\frac{1}{4}=\frac{3}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7BR%7D%3D%5Cfrac%7B1%7D%7B4%7D%2B%5Cfrac%7B1%7D%7B4%7D%2B%5Cfrac%7B1%7D%7B4%7D%3D%5Cfrac%7B3%7D%7B4%7D)
![R=\frac{4}{3}\Omega](https://tex.z-dn.net/?f=R%3D%5Cfrac%7B4%7D%7B3%7D%5COmega)
![V=IR](https://tex.z-dn.net/?f=V%3DIR)
Substitute the values
![V=12\times \frac{4}{3}=16 V](https://tex.z-dn.net/?f=V%3D12%5Ctimes%20%5Cfrac%7B4%7D%7B3%7D%3D16%20V)
![I_1=\frac{V}{R_1}=\frac{16}{4}=4 A](https://tex.z-dn.net/?f=I_1%3D%5Cfrac%7BV%7D%7BR_1%7D%3D%5Cfrac%7B16%7D%7B4%7D%3D4%20A)
![I_1=I_2=I_3=4 A](https://tex.z-dn.net/?f=I_1%3DI_2%3DI_3%3D4%20A)
Hence, current flows through any one of the resistors is 4 A.
That would be
0 degrees Celsius aka the melting point of water.... If you look at the diagram I attached you notice that at 0 degrees Celsius it is flat, this is because much heat is needed at this point for water to rise to 1 degree... It is the same for the boiling point (100)<span />
Sorry I had the answer but it wont let me type numbers :(.:
Heck yeah i'll follow!!!!!!