Answer:
the assessment is due at 11 you only have 1 hour do it fasst
Explanation:
the assessment is due at 11 you only have 1 hour do it fasst
Answer:
d) is the same as when it started from rest
Explanation:
using equation of motion
v = u + at
second law of momentum defines
F = ma
a = F /m
the equation becomes
v = u + (F/m)t
from hear
since v is directly proportional to the force and the force remain the same, the increase in the cart speed will also remain the same.
Really sad try not to let it get to you
Answer:
F = 0.414 N
Explanation:
Given that,
Magnetic flux density,
The length of the wire, l = 24 m
Current, I = 0.48 A
We need to find the force acting on the wire. The formula for the force is given by:
Put all the values,
So, the force acting on the copper wire is equal to 0.414 N.
Pendulum period in seconds T ≈ 2π√(L/G) L is length of pendulum in meters G is gravitational acceleration = 9.8 m/s²
So the answers are the following:
a) use G = 9.8 + 5.0 = 14.8 m/s²b) use G = 9.8 – 5.0 = 4.8 m/s² c) 2π√(L/G) = 2pi √5/9.8 = 4.49 m/s^2