Answer:
8.00 kJ
Explanation:
The first thing is to determine what quantities are there.
the mass of water = 1 000 kg
initial velocity, u = 6 m/s
final velocity, v = 4 m/s
the generator is operating at 100 % efficiency, so there is no energy loss.
The kinetic energy, Ek is converted to electrical energy, therefore Ek = electrical energy.
The kinetic energy is calculated as follows:
Ek = 1/2 mv²
= 1/2×(1 000)× (4)²
= 8 000 J/s
= 8.00 kJ Ans
Answer:
it does show the objects position
Answer:
<em>The density of a substance is the relationship between the mass of the substance and how much space it takes up</em>
Explanation:
thats it take my word hope thats what u meant
The object rises to a height of 20.4 m. So option C is correct.
Explanation:
initial velocity= Vi=20 m/s
final velocity at the top= Vf=0
acceleration= g=-9.8 m/s²
Vf²=Vi²+2gh
0= (20)²+2 (-9.8)h
-200=-9.8h
h=200/9.8
h=20.4 m
Thus the object rises to a height of 20.4 m
Answer:
Explanation:
As the field of current wire passing through the loop is same in direction (normally inward) but not uniform in magnitude.
So, we will use integtation method for finding the flux.
The same flux through a thin reactangular strip of length l and with dx, is given by
dϕB=Bx.dS=B(x)dScos180∘.
Magnetic field due to a long straight wire carrying current I is given by B=μ0I2πx, and area, dS=l×dx.
∴ ϕB=∫dϕB=−∫μ02πIlx.dx=−μ02πIl[logex]x=a+lx=a
=−μ02π.Ill
