Author Question: A pendulum clock uses a simple pendulum as its timing device. The clock is correct at noon. The next ... (Read 229 times)

bio_gurl · **on:** Jul 29, 2018

A pendulum clock uses a simple pendulum as its timing device. The clock is correct at noon. The next day, when the clock reads noon, the actual time is 11:50 a.m.

What is the fractional change in pendulum length that must be made so the clock runs at the correct rate?
A)

1.40 longer
B)

16.7 longer
C)

0.699 longer
D)

0.699 shorter
E)

2.84 longer

Question 2

In problems involving a slope or inclined plane, the force due to gravity is always perpendicular to the slope or the plane.

Indicate whether the statement is true or false