What are the units for force? what are the units for force?
a) force must first be measured in newtons, then converted to pounds.
b) force can be expressed in newtons or pounds.
c) force must be measured in newtons; it can never be measured in pounds.
d)force must be measured in pounds and then converted to newtons.

Newton

Explanation:

A newton (N) is the international unit of measure for force. One newton is equal to 1 kilogram meter per second squared. In plain English, 1 newton of force is the force required to accelerate an object with a mass of 1 kilogram 1 meter per second per second.

mark brailiest:)

answer would be d.) i hope this

explanation:

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .