An object is acted upon by a force of 22 newtons to the right and a force of 13 newtons to the left. What is the magnitude and direction of the net force?
O A. 9 newtons to the right
OB. 9 newtons to the left
O c. 22 newtons to the right
O D.35 newtons to the right
O E 35 newtons to the left

selected the wrong subject

The net force is A) 9 newtons to the right

Explanation:

In order to find the net force, we have to use vector addition.

First of all, we have to define a positive direction for the vectors. We take the following convention:

To the right = positive direction

To the left = negative  direction

Therefore, the two forces acting on the object are:

A force of 22 N to the right --> therefore we can write it as  (positive)

A force of 13 N to the left --> therefore we can write it as  (negative)

Since the two forces act on the same line, we can calculate theire resultant simply by adding them together with the proper sign. Therefore, the net force is

And the sign of the net force (positive) tells us that the direction is to the right.

the answer is a wheel

the earth’s crust is broken into separate pieces called tectonic plates (fig. 7.14). recall that the crust is the solid, rocky, outer shell of the planet. it is composed of two distinctly different types of material: the less-dense continental crust and the more-dense oceanic crust. both types of crust rest atop solid, upper mantle material. the upper mantle, in turn, floats on a denser layer of lower mantle that is much like thick molten tar.

each tectonic plate is free-floating and can move independently. earthquakes and volcanoes are the direct result of the movement of tectonic plates at fault lines. the term fault is used to describe the boundary between tectonic plates. most of the earthquakes and volcanoes around the pacific ocean basin—a pattern known as the “ring of fire”—are due to the movement of tectonic plates in this region. other observable results of short-term plate movement include the gradual widening of the great rift lakes in eastern africa and the rising of the himalayan mountain range. the motion of plates can be described in four general patterns:

collision: when two continental plates are shoved together

subduction: when one plate plunges beneath another (fig. 7.15)

spreading: when two plates are pushed apart (fig. 7.15)

transform faulting: when two plates slide past each other (fig. 7.15)