Answer:
A. It does not exhibit projectile motion and follows a straight path down the ramp.
Answer:
B) The lightbulb uses 4,104,000 J more than the stereo.
Just do what u would do if u were at a stop sign
Explanation:
Let
are the number of turns in primary and secondary coil of the transformer such that,

A resistor R connected to the secondary dissipates a power 
For a transformer, 

...............(1)
The power dissipated through the secondary coil is :


.............(2)
Let
are the new number of turns in primary and secondary coil of the transformer such that,

New voltage is :

...............(3)
So, new power dissipated is 





So, the new power dissipated by the same resistor is 6400 watts. Hence, this is the required solution.