Answer:
160kg m/s
Explanation:
momentum = mass * velocity
here given mass = 80 kg and velocity = 2m/s
so 80 * 2 = 160kg m/s
Answer:
Explanation:
Yes she is doing work. With or without the groceries, she is still doing work. She does more work with the groceries than without because Work is defined by F which is defined by mass. The mass increases with the groceries.
The work done is against the force of gravity.
I guess since I couldn't see red, I might see the red stripes as white or maybe not even see them at all.
Answer:
2452.5 N/m^2
Explanation:
given:
density =500kg/m^3
viscosity = 10 Pa-s
diameter of tube= 2 m
and L be length
since gravity is the only force shear force will balance it
so we can write
mg=
A=
m=
therefore
putting values we get
calculating we get 2452.5 N/m^2
Answer:
B
Explanation:
Magnetiic field of the earth is generated by the earths outer core