Answer:
The speed of object B is 2 times of speed of object A.
Explanation:
Given that,
Kinetic energy of object A = 25 J
Mass of object B 
Work done = -20 J
We need to calculate the factor of the speed of the object
Suppose the final kinetic energy is same for both object.


Put the value into the formula




Hence, The speed of object B is 2 times of speed of object A.
Answer: 0.0208 Centuries
Explanation:
There is 2.739*10^-5 centuries per 1 day.
We can take 746 days and multiply it by that 2.7 number to get how many centuries are in 746 days.
= 0.0208 centuries
The design of the building matters because sound bounces around, it is asorbed by soft material, If it is big and open you might have an echo, so the design affects how the sound bounces and echos, or how the sound is asorbed.