Biology, 25.09.2019 19:30 veraanna2015

1.) which two measurements are needed to determine the speed of an object?
a
distance and direction
b
position and time
c
position and direction
d
distance and time
2.) an athlete is running a 5-km race at an average speed of 8 km/h. she has to stop to tie her shoe, which delays her time. after tying her shoe, she continues running at 8 km/h. why would her average speed for the entire race decrease?
a
the total time she took to complete the race increased because she stopped to tie her shoe.
b
the total time she took to complete the race decreased because she stopped to tie her shoe.
c
the total distance she traveled was shorter than 5 km.
d
the total distance she traveled was longer than 5 km.
3.) position describes the location of an object.
a
true
b
false

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