Preserved fossil<span> (like a fossil in amber, ice or tar.</span>
Answer:
a) 10.6V
b) E = 4.9V/m, +x direction
c) E = 4.9V/m, +x direction
Explanation:
You have the following function:
(1)
for the potential in a region between x=0 and x=6.00 m
a = 10.6 V
b = -4.90V/m

a) for x=0 you obtain for V:

b) The relation between the potential difference and the electric field can be written as:
(2)
the direction is +x
c) The electric field is the same for any value of x between x=0 and x=6m.
Hence,
E = 4.9V/m, +x direction
I posted this because I got it correct. The answer is 28J.
Answer: 0.04139m
Explanation:
First, we need to calculate the weight of the man which will be:
Weight = mass × acceleration due to gravity
Weight = mg
Weight = 92.5 × 9.8
Weight = 906.5N
Then, we calculate the force which will be:
F = kx
mg = kx
x = mg/k
x = 906.5/21900
x = 0.04139m.
The spring stretched for 0.04139m.