In a baseball game, the catcher stops a 90-mph pitch. What can you say about the work done by the catcher on the ball?
a) catcher has done positive work
b) catcher has done negative work
c) catcher has done zero work
Ans: b) catcher has done negative work
You might also like to view...
On a Hertzsprung-Russell diagram, where would we find stars that are cool and dim?
A) upper right B) lower right C) upper left D) lower left
The solar neutrino problem was solved when it was discovered that neutrinos ________ during the time they take to reach the Earth
Fill in the blank(s) with correct word
The banking angle for a properly banked curve does not depend on the mass of the car going over it
Indicate whether the statement is true or false
Thin Lenses: An object is placed 60 cm from a convex lens with a focal length of magnitude 10 cm. What is the magnification?
A. -0.10 B. 0.10 C. 0.15 D. 0.20 E. -0.20