Answer:
284 m
Explanation:
According to engineeringtoolbox(dot)com the speed of compressive sound in concrete is 3700 m/s
The speed of sound in standard air is 343 m/s
If t is the time in seconds of sound travel through the concrete and d is the distance
d = 3700t
d = 343(t + 0.75)
3700t = 343t + 257
3,357t = 257
t = 0.07663 s
d = 3700(0.07663) = 284 m
d = 343(0.07663 + 0.75) = 284 m
Answer:
Transition State Stage
Explanation:
Dictionary definition:
<em>The transition state of a chemical reaction is a particular configuration along the reaction coordinate.</em>
They gather data about the natural world.
hope that helped! :)
42.9°
Explanation:
Let's assume that the x-axis is aligned with the incline and the positive direction is up the incline. We can then apply Newton's 2nd law as follows:
Note that the net force is zero because the block is moving with a constant speed when the angle of the incline is set at Solving for the angle, we get
or
Answer:
ok thanks for giving point