A dog-sled driver prepared for her race. Her sled was loaded with sled equipment,
but on snow and ice, the dogs moved the
heavy sled. Each dog pulled with a force
of 600 N
During the race, she came to an area of
grass and dirt instead of snow. The sled
slowed to a stop. The driver said,
There must be something wrong with
one of the dogs. One of them is pulling
with a force of less than 600 N.
How would you respond to the dog-sled
driver?

If the root word engage means “to connect with something,” what does the word disengage mean in the following sentence? he disengaged the gears by stepping on the clutch pedal. a.added more engine powerb. activated a connection to the pedalc. stalled the engined. released a connection to the pedal

What can be added to the examples section of each circle? endothermic: ice melting into water, and a heat pack becoming warm exothermic: a glow stick glowing, and fireworks exploding endothermic: ice melting into water, and an instant ice pack turning cold exothermic: fireworks exploding, and gasoline burning endothermic: a glow stick glowing, and a heat pack becoming warm exothermic: an instant ice pack turning cold, and ice melting into water endothermic: gasoline burning, and an instant ice pack turning cold exothermic: ice melting into water, and an instant ice pack turning cold

What is the independent variable in this investigation? mass volume sample number substance density