Answer:
D wavelength
Explanation:
The different wavelengths determine the color.
Answer:
its b option balance hi your last question
Answer:
Explanation:
First of all, we analyze the system of blocks before starting to move.
Hence, the incline angle θ for which both blocks begin to slide is 10.20°.
Now, if we do a free body diagram of block A we have that after the block moves, the spring force must be taken into account.
Where:
Therefore, the required stretch or compression in the connecting spring is 0.10 ft.
I hope it helps you!