Answer:
d.20760 J
Explanation:
We are given that
Mass of cart=m=100 kg
At the top,h=22 m
Amount of energy convert into heat due to friction=E=800 J
We have to find the kinetic energy at the bottom of the ramp.
Potential energy drop=mgh=
Kinetic energy at the bottom=Potential energy drop-energy lost due to friction
Kinetic energy at the bottom =(21560-800) J
Kinetic energy at the bottom=20760 J
Hence, the kinetic energy at the bottom of the ramp=20760 J
d.20760 J
Because any other radiation can be harmful<span />
It goes to rest
or it goes to motion
Answer:
Part a)
F = 0.735 N
Part b)
Explanation:
As we know that mass of the cube is given as
Now we know that cube is floating in the water
So net force due to weight of the cube must be counter balanced by buoyancy force on the liquid
so we have
Part b)
Percentage of volume submerged into the liquid is given as
now percentage of submerged liquid is given as