If the position versus time graph of an object is a horizontal line, the object is A. moving with constant non-zero speed.
B. at rest.
C. moving with constant non-zero acceleration,
D. moving with infinite speed.

To find the mass defect for uranium-238 several calculations must be made. which is the calculation that should be made first? assume atomic number for uranium-238 is 92. a. 92(1.0073) x 92(1.0087) = b. 92(1.0073) x 146(1.0087) = c. 146(1.0073) x 238(1.0087) = d. 238(1.0073) x 238(1.0087) =