A 1.5-kg object moving along the x axis has a velocity of +4.0 m/s at x = 0. If the only force acting on this object is shown in the figure, what is the kinetic energy of the object at x = +3.0 m?
A. 18 J
B. 21 J
C. 23 J
D. 26 J
E. 8 J
Answer: A
Physics & Space Science
You might also like to view...
Ohm's Law: For the graph shown in the figure, what physical quantity does the slope of the graph represent for ohmic material?
A. power B. resistivity C. 1/(resistivity) D. resistance E. 1/(resistance)
Physics & Space Science
Time Dilation: At age 21, you set out for a star that is 50 light-years from Earth. How fast would your spaceship have to travel in order to reach that star when you are 61 years old? One light-year is the distance light travels in one year.
A. 0.58c B. 0.68c C. 0.78c D. 0.88c E. 0.96c
Physics & Space Science
"Buckyball" is an allotrope of the element
a. carbon. b. oxygen. c. phosphorus. d. none of these.
Physics & Space Science
In the formula
Balmer found that for the visible lines in hydrogen that nf=_______.
A. 1 B. 2 C. 3 D. 4 E. 5
Physics & Space Science