A thermographic camera or thermal imaging camera is a device that
forms an image using radiation other than visible light. This is a
thermal image of a chihuahua taken in thermal or infrared light. Notice
this method detects changes in temperature throughout the
chihuahua. An application of thermal imaging using infrared light has
been developed to help homeowners save money. What is this
application?
Thermal images can be used to locate household
pests by an exterminator.
Thermal images pick up body heat and can locate
where people are in the home.
Using thermal imaging to detect heat energy loss
through the roof and windows.
Using thermal imaging to detect exposure to radon
being emitted from the ground.

Learning goal: to understand newton's 1st law. newton's principia states this first law of motion: an object subject to no net force maintains its state of motion, either at rest or at constant speed in a right line. this law may be restated as follows: if the sum of all forces acting on an object is zero, then the acceleration of that object is zero. mathematically this is just a special case of the 2nd law of motion, f⃗ =ma⃗ , when f⃗ =0. when studying newtonian mechanics, it is best to remember the 1st law in two ways: if the net force (i.e., sum of all forces) acting on an object is zero, the object will keep moving with constant velocity (which may be zero). if an object is moving with constant velocity, that is, with zero acceleration, then the net force acting on that object must be zero. complete the following sentences to see if you can apply these ideas. part a if a car is moving to the left with constant velocity, one can conclude that