Answer:
the answer is that the circuit is open,
Explanation:
if you look towards the switch its off, or open meaning no current can flow
Elastic collision is when kinetic energy before = kinetic energy after
Ek= 1/2mv^2
total before
Ek=1/2(2)(2.2^2) = 4.84 J
total after
Ek= 1/2(2+4)(v^2) = 3v^2
Before = after
4.84=3v^2 | divide by 3
121/75 = v^2 | square root both sides
v=1.27 m/s
The answer is B. Sunlight (white light) refracts when it passes through droplets of water in the atmosphere
Answer:
Vf = 69.61 m/s
Explanation:
We will use the third equation of motion to solve this problem:

where,
g = acceleration due to gravity = 9.81 m/s²
h = height of cliff = 247 m
Vf = final velocity = ?
Vi = initial velocity = 0 m/s (boulder breaks loose from rest)
Therefore,

<u>Vf = 69.61 m/s</u>