Answer
70 m/s, 140 m/s, 28 m/s²
Explanation:
Average velocity = total distance travel / time = 350 / 5 = 70 m/s
average velocity = (initial velocity + final velocity) / 2
70 × 2 = 140 m/s
change in velocity = final velocity - initial velocity = 140 m/s - 0 = 140 m/s
acceleration = (final velocity - initial velocity) / t = 140 m/s / 5 = 28 m/s²
The correct answer is: [D]:
__________________________________________________________
"The amount of pressure exerted by a solid is solely dependent on its mass."
__________________________________________________________
<span>Electric field is proportional to q/d^2, where q is the magnitude of the charge and d is the distance. Since all the given units are identical, we can just compare their relative magnitudes without calculating for the exact values.
A) 3/(0.4)^2 = 18.75
B) 1.5/(0.2)^2 = 37.5
C) 6/(0.4)^2 = 37.5
D) 3/(0.2)^2 = 75
Therefore, choice D has the largest electric field of all.
</span>
Answer:
The force required to maintain an object at a constant velocity in free space is equal to Zero.
The filter would need to absorb every color EXCEPT yellow. It would have to absorb red orange green blue and violet.
