A student graphed the position of a cart during a 7-second time interval. Position vs. Time Graph
The cart moved at a constant velocity of 0.5 m/s for the entire 7
seconds.

The cart was stationary except for a short burst of acceleration of
0.5 m/s?
22
1
1 2
The cart accelerated at a constant rate of approximately 0.8 m/s?.
Time (s)
Which statement best describes the cart?
The cart was stationary with a velocity of O m/s for the entire 7
seconds.
CLEAR ALL

Animal bodies (and even plant bodies for that matter) are complex enough that life couldn't exist without enzymes. enzymes are usually large, complex biological catalysts that are expensive to make. enzymes speed up the rate of chemical reactions without being used up during the reaction (they can be reused many times). they are highly specific in the reactions they regulate. knowing what enzymes are and how they function, why does this explain why complex life forms could not exist if there were no enzymes.

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm

Grade 91.)the gravitational pull from the moon words).2.) what is the rate of gravitational 3.)if you drop a hammer, is it more likely to drop handle side down, head side down, or equal chance that it will land either way? why? 4.)a car moves 60km east and 90km west.a.) what is the distance the car traveled? b.) what is the car's displacement5.)what is the average velocity of a car that moved 60 km south in 3 hours? 6.) a car starts from rest and acceleration to 60 m/s over a time of 5 seconds. what is the acceleration of the car? 7.)what is the speed of an object at rest?