When starting from rest at the bottom of a straight road with constant upward slope, Joan bicycles to the top 50.0 s ahead of Sally, whose travel time is 5.00 minutes. What is the ratio of Joan's acceleration to Sally's acceleration?
a. 0.694
b. 0.833
c. 1.20
d. 1.44
e. 6.00
d
You might also like to view...
A person pushes horizontally on a heavy box and slides it across the level floor at constant velocity. The person pushes with a 60.0 N force for the first at which time he begins to tire
The force he exerts then starts to decrease linearly from 60.0 N to 0.00 N across the remaining How much total work did the person do on the box? A) 619 J B) 826 J C) 495 J D) 925 J
Buoyancy: A 10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kg piece of lead, which is much denser than aluminum. Which one has the greater buoyant force on it?
A. the aluminum B. the lead C. Both have the same buoyant force. D. It cannot be determined without knowing their volumes.
Applications to Astronomy: Stars A and B are both black holes but have different masses. If the mass of star A is twice as much as the mass of star B, the average density of star A, compared to the average density of star B will be
A. the same. B. twice as much. C. half as much. D. four times as much. E. one-fourth as much.
Most molecules found in the interstellar medium are based on carbon
Indicate whether the statement is true or false