Which change to an object would double its kinetic energy? A. Increasing its mass to twice its original value
B. Increasing its mass to four times its original value
C. Increasing its velocity to four times its original value
D. Increasing its velocity to twice its original value

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

=force × distance a. work b. velocity c. pressure d. momentum

(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?