On foot= 1 kilometer per 5 minutes
Bike= I kilometer per 2 minutes
3 minutes fast per mile on bike
Answer:

Explanation:
Consider the motion of the ball attached to string.
In triangle ABD

height gained by the ball is given as

= mass of the ball attached to string = 110 g
= speed of the ball attached to string just after collision
Using conservation of energy
Potential energy gained = Kinetic energy lost

Consider the collision between the two balls
= mass of the ball fired = 26 g
= initial velocity of ball fired before collision = ?
= final velocity of ball fired after collision = ?
using conservation of momentum

Using conservation of kinetic energy

Answer:
The answer here would be light bulb.
Explanation:
An Illuminated object is simply something that reflects light. And everything in the list is illuminated except the light bulb. Humans reflect light in the same way as desks and sidewalks. If we didn't we wouldn't technically be able to see other humans unless they were luminous. This brings me to the nest point. A light bulb is a luminous object because <em>it creates light on its own. </em>
A good example would be this:
The Sun is a luminous object
The Moon is a illuminated object
I hope this helped and didn't confuse you more, I kind of went all over the place with the explanation. Either way, if you need more help feel free to let me know! :)
-Matt
The energy of a photon of light is directly proportional to its frequency and <span>inversely</span> proportional to its wavelength.