I think it is D a light bulb
Answer:
c. Sound travels slower than light.
Explanation:
We see any thing because of the light emitted or reflected by it. Whereas the sound is carried by the sound waves. The speed of light is more than the speed of sound. This is the reason the family saw the fireworks first and then heard the sound.
The same can be experienced during the sighting of a Jet plane or a rocket where, we see them way before we can hear the roaring sound of its engines.
ANSWER:
0.0562 J
STEP-BY-STEP EXPLANATION:
Angular momentum is expressed in terms of moment of inertia and angular velocity. This is expressed as follows:

Here, I is the angular momentum and ω is the angular velocity.
Angular momentum is mass time the square of the radius of the object. Moment of inertia for a uniform disk is given as,

Here, m is the mass of the disk and r is the radius of the disk.
Replacing:

Convert the units of angular velocity into rad/s.

We replace each data to calculate the angular momentum:

The angular momentum of the uniform disk is 0.0562 J
Answer:
T1 = T2 = 602.33 N
Explanation:
I attached an image of the forces diagram below.
The x component of the forces for this cases is:

And the y components:

The angle is calculated by using the information about the length of the cable and the vertical distance of the traffic light:

Thus, you obtain:

hence, the tension in both segments of the cable is 602.33 N
C = 5/9 (F-32)Part 1. C=5F/9-(5/9)325F/9=C+160/9F=(9/5)C+(9/5)(160/9)F=(9/5)C+32for part 2:
F=(9/5)20+32F=36+32=68 degrees Fahrenheit