Some metals have a molecular structure that makes them good conductors. Explain how understanding this relationship can help eng
2 answers:
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1. By 0.02 m/s^2
The period of a pendulum is given by:
where
L is the length of the pendulum
g is the gravitational acceleration
Initially, we know:
T = 2.00000 s is the period of the pendulum
g = 9.80 m/s^2 is the acceleration due to gravity at the original location
We can solve the equation for L in order to find the length of the pendulum:
The length of the pendulum does not change when it is moved to the new location, so we can use the same equation with (the new period) and solving it for g to find the acceleration due to gravity at the new location:
So, the change in gravitational acceleration is
2) the period of the pendulum is directly proportional to the square root of the length, L, and inversely proportional to the square root of the gravitational acceleration, g.
The period of a pendulum is given by:
where
L is the length of the pendulum
g is the gravitational acceleration
So, we see that the period of the pendulum is directly proportional to the square root of the length, L, and inversely proportional to the square root of the gravitational acceleration, g.
3) The length of the pendulum does not change
The length of the pendulum does not depend on the location: in fact, only the value of the gravitational acceleration, g, depends on the location, therefore the length of the pendulum, L, does not change.
Answer:
u = 18 cm
Explanation:
given,
radius of curvature = 60 cm
magnification of mirror = 2.5
distance of object = ?
R = 2 f
f = R/2
f = 60/2 = 30 cm
v = -2.5 u
now,
Using mirror formula
u = 0.6 x 30
u = 18 cm
distance of object be equal to u = 18 cm