Answer:
Centre of gravity is a theoretical point in the body where the total weight of the body is thought to be concentrated. In a uniform gravitational field, the centre of gravity is identical to the centre of mass. Yet, the two points do not always coincide.
Hello,
The mass number is protons+neutrons=mass number. In this case, we have protons+nuetron=164.The atomic number is simply the number of protons so we have 43+neutrons=164. Subtracting 43 from both sides we get nuetrons=121. Hope this helps!
C.) The rougher the surface of an object, the more friction it will produce.
think of sliding a rock on the street
The horizontal component of the force is 34.5 cos(45) = 24.4 newtons
The vertical component of the force is 34.5 sin(45) = 24.4 newtons
The answer could be B. Reef shark
