Answer:
B - Velocity
Explanation:
Velocity definition: “The speed of something in a given direction.”
Answer:
Anybody which is in state of rest ,will be in rest if we don't apply any external force ...
Answer:
True.
Explanation:
A nanometer is a unit of mass, whereas a nanosecond is a unit of time. To convert 1.3 hours to minute, you would multiply by 1 h / 60 min. Kilometer is a unit of length, whereas kilogram is a unit of mass. True.
if the color changes, it is neutral but if it stays the same, it is an acid.
Answer:
From the formula of force:

since AB and k are constants:

x is a constant of proportionality
• when force is 4N, separation distance is 1

therefore, equation becomes

when r is doubled, r becomes 2. find F:
