1 A stopwatch is used to time a runner in a race. The diagrams show the stopwatch at the start and
at the end of a lap of the race.
0:50:10
V
1:40:10
start of lap
end of lap
How long did the runner take to finish the lap of the raco?
A 50.00 seconds
B 50.10 seconds
C90.00 seconds
D
100.10 seconds

Aball bearing at 220.0 °c is dropped into a cup containing 250.0 g of water at 20.0 °c. the water and ball bearing come to a temperature of 30.0 °c. what is the heat capacity of the ball bearing in j/°c? (hint: how are the algebraic signs of q related for the ball bearing and the water? )

When electrons are added to the outermost shell of a carbon atom, it forms--an anion that has a larger anion that has a smaller cation that has a larger cation that has a smaller radius.

Blood pressure the total amount of blood the heart pumps in one minute 2. cardiac output the number of times your heart beats in a minute 3. dilate the amount of blood that the heart can pump in a single beat 4. heart rate the force exerted on the walls of the blood vessels by the blood that moves through them 5. stroke volume to widen or get larger in size