Work may be measured using units of A.watts B.newton C.joules D.newtons per second
1 answer:
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Answer:
42 minutes
Explanation:
First, let us find out the time required by the roommate, who is driving the truck, to reach the city.
We know that,
Now, you are planning to rest a bit after traveling for an hour. So,
distance covered in that 1 hour =
time required by you to cover the total distance =
If you wish reach at the destination half an hour (0.5 h) before your roommate, you can expend a total of throughout your journey.
Hence, you can rest for
A proton is initially moving at high speed
so here initially proton is having high speed and high kinetic energy
now this proton comes to rest by external electric field
so the potential energy of proton will increase or we can say that kinetic energy will convert into electrostatic potential energy
so here the proton must have to move at higher potential region
so here correct answer must be
b. Because the proton is a positive charge and it slows down as it travels, it must be moving from a region of lower potential to a region of higher potential.