Answer:
steel because being alloy in metal it has free electrons in metals
Answer:
1.65 m
Explanation:
The motion of the ball is a projectile motion, so it is a parabolic motion with two independent motions:
- on the x-axis, a uniform motion with constant speed 
- on the y-axis, a uniformly accelerated motion with constant acceleration
downward.
First of all, we need to find the time t at which the ball has travelled halfway to the chatcher, i.e. at a distance of
. This can be found by using the relationship between distance, time and velocity along the horizontal direction:

So now we can move to the vertical motion, and we can calculate the distance covered vertically by the ball while falling for t=0.58 s, by using:

Answer:
The initial energy and final energy are the same
= 307.52m
≅ 308m
Explanation:
see the attached file
Properties that define the light is a wave are
1. Speed : speed of light is 300,000 Km /s, It is most fundamenta property of light to define light is a wave
2. Reflection: Light particles or photons reflect off the particles or masses are continue to travel at the same speed.
3. colour