Answer:
D) Electromagnetic waves
Explanation:
This is because with compression waves and longitudinal waves a medium is required such as air. however in a vacuum this will not work
<span>a) 13 seconds
b) 130 m/s
The formula for the distance an object moves while under constant acceleration is d = 1/2AT^2. So let's define d as 830 m, A as 9.8m/s^2, and solve for T
830 m = 1/2 9.8 m/s^2 T^2
830 m = 4.9 m/s^2 T^2
Divide both sides by 4.9 m/s^2
169.3878 s^2 = T^2
Take the square root of both sides
13.01491 s = T
Since we only have 2 significant figures, round the result to 13 seconds which is the answer to the first part of the question. To find out how fast the marble is moving, just multiply T and A together
13 s * 9.8 m/s^2 = 127.4 m/s
Since we only have 2 significant figures, round the result to 130 m/s.</span>
Volume is the amount of space an object or substance takes up, so if they are the same size then they will have the same volume. If you wish to test this, get a beaker, fill it up to one of the lines and make sure tou remeber which line, then place one ball in gently and see how muchbit went up, then take that ball out and do the same with the other. The results should be the same.
Hope this helps!
Two identical balls collide<span> head on. The </span>initial velocity<span> of </span>one<span> is 0.75 </span>m/s<span> east, while that of the </span>other one<span> is 0.43 </span>m/s west<span>.</span>
Answer:
The amount of energy absorbed by the substance and is generated by heat is called HEAT energy. Matter or arrangement or thermal