The figure below shows the unusual path of a confused football player. After receiving a kickoff at his own goal, he runs downfield to within inches of a touchdown, then reverses direction and races back until he’s tackled at the exact location where he first caught the ball. During this run, which took 25 s, what is the path length he travels?
2
You might also like to view...
The forces that hold the nucleus together
A) are much stronger than electromagnetic forces. B) act over only very short distances. C) Both of the above. D) are attractive, that is, they pull in the inward direction. E) All of the above.
The root-mean-square speed (thermal speed) of the molecules of a gas is 200 m/s at 23.0°C. At 227°C the root-mean-square speed (thermal speed) of the molecules will be closest to
A) 260 m/s B) 630 m/s C) 330 m/s D) 160 m/s E) 2000 m/s
The acceleration of an object as a function of time is given by a(t) = (3.00 m/s3)t. If the object has a velocity 1.00 m/s at time t = 1.00 s, what is the displacement of the object between time t = 2.00 s and time t = 4.00 s?
A) 33.0 m B) 30.0 m C) 36.0 m D) 27.0 m E) Not enough information is given to determine the displacement of the object between these two times.
With the understanding of differentiation, which layer of Earth would be the densest?
a. lithosphere b. core c. crust d. hydrosphere e. mantle