When a force is applied to an object the work done is
A. Negative
B. Positive
C. There is no work
D. All of these are possible
Ans: D. All of these are possible
You might also like to view...
Spherical Mirrors: An object is 10 cm in front of a concave spherical mirror with a focal length of magnitude 3.0 cm. Where is the image?
A. 13 cm from the mirror B. 7.0 cm from the mirror C. 4.3 cm from the mirror D. 3.3 cm from the mirror
Jupiter's intense magnetic field traps high-energy particles from the solar wind and forms a radiation belt around the planet
a. True b. False Indicate whether the statement is true or false
According to our present theory of solar system formation, which of the following lists the major ingredients of the solar nebula in order from the most abundant to the least abundant?
A) hydrogen and helium gas; rock; metal; hydrogen compounds B) hydrogen and helium gas; hydrogen compounds; rock; metal C) hydrogen, water, methane, helium D) hydrogen compounds; hydrogen and helium gas; metal; rock
Which of the following elements commonly forms an ion with a 1– charge?
a. Ag b. N c. Br d. Na