The solution for fh has a singularity (that is, becomes infinitely large) at a certain angle θcritical. For any angle θ>θcritical , the expression for fh will be negative. However, a negative applied force fh would reverse the direction of friction acting on the lawnmower, and thus this is not a physically acceptable solution. In fact, the increased normal force at these large angles makes the force of friction too large to move the lawnmower at all.

Summarize the work of famous environmental scientists of the past.

Which of the following does the reading test of the sat ask you to do ?

How did loftus interpret false memories? a. because of their desire to whoever is asking them about their memories people will often go along with what they want to hear b. eyewitness memories becomes faulty when we make errors in identifying the source of information we have stored in long term memory c. we accept subsequent misinformation as being correct, and this information becomes part of our memory for the original event d. when we retrieve a memory for a particular event from long-term memory, we also retrieve information from other sources relevant to the event