Answer:
a)KE=878.8 J
b)W=2636.4 J
Explanation:
Given that
mass ,m = 65 kg
Initial speed ,u = 5.2 m/s
a)
We know that kinetic energy KE is given as follows
m=mass
u=velocity
Now by putting the values in the above equation we get
KE=878.8 J
b)
We know that
Work done by all forces = Change in the kinetic energy
The final velocity , v= 2 u = 2 x 5.2 m/s
v= 10.4 m/s
Now by putting the values in the above equation we get
W=2636.4 J
a)KE=878.8 J
b)W=2636.4 J
Weight = mg, g ≈ 9.8 m/s²
Weight = 2.2 * 9.8 ≈ 21.56 N
<span>A series circuit has one path for electrons, but a parallel circuit has more than one path.</span>
Mar 28, 2011 · The Hoover Dam generates
electricity using hydropower. Hydropower is the power generated by
moving water. Dams are often built on a large river, so the water falls
down from the top of the dam. At the bottom of the dam, the water
rotates a large turbine
Hope this helps :p
Explanation:
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