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, Select all of the following statements that are true of Two forces can describe the interaction between two objects
forces. A force is a push or pull
Select all of the following forces that are long-range forces. Magnetic forces
Electric forces
Gravitational forces
What is the unit of force in the SI system? Newton
Select all of the following that could be the magnitude of a 0N
vector. 8N
2N
5N
Never negative
Select all of the following that are not vectors. temperature & speed
reason: velocity & force are. Temperature has no direction, speed is the magnitude
of the velocity however has no direction.
True or false: Motion can be understood without analyzing false
forces.
Select all of the following that could be properties of magnitude, units, algebraic sign
scalars.
reason: Scalars can have magnitude, algebraic sign (positive or negative), and
units, but not a direction in space.
In which situations do long-range forces apply? every situation
zero Vectors A→A→, B→B→, and C→C→ are shown in the diagram. What is the sum of
the three vectors?
True or false: Forces can only be measured by springs. false
Select all of the following that are parts of vector algebraic sign, magnitude, units
components.
reason: vector components do not have angles because they are entirely along a
given axis
Select all of the following that are vectors. 90 N, up
90 N, north
reason: the others are missing either direction or magnitude