Acheetah can go from a state of resting at running at 20m/s in just two seconds. what is the cheetahs average acceleration
a.40 m/s
b.40 m/s^2
c.10 m/s
d.10 m/s^2

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

Abike rider starts from rest and accelerates 28.0 meters down a slope in 5.00 seconds. what is her acceleration? select one: a. 3.21 m/sec2 b. 1.75 m/sec2 c. 9.80 m/sec2 d. 2.24 m/sec2

Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?