Instructions: On occasion, the notation 
will be a shorthand notation for 
.
If vector 
is added to vector 
, the result is 
. If is subtracted from 
, the result is 
. What is the magnitude of ?
A. 5.1
B. 4.1
C. 5.4
D. 5.8
E. 8.2
Answer: B
You might also like to view...
Object A is more massive than object B. Which of the following statements is true?
A. Both object A and object B experience the same gravitational force. B. Both object A and object B experience the same gravitational acceleration. C. Object A experiences a greater gravitational force and gravitational acceleration than object B.
Charge of uniform density (80 nC/m3) is distributed throughout a hollow cylindrical region formed by two coaxial cylindrical surfaces of radii 1.0 mm and 3.0 mm. Determine the magnitude of the electric field at a point which is 2.0 mm from the symmetry axis
a. 7.9 N/C b. 9.0 N/C c. 5.9 N/C d. 6.8 N/C e. 18 N/C
A 15-?F air-filled capacitor is connected to a 50-V voltage source and becomes fully charged. The voltage source is then removed and a slab of dielectric that completely fills the space between the plates is inserted
The dielectric has a dielectric constant of 5.0. (a) What is the capacitance of the capacitor after the slab has been inserted? (b) What is the potential difference across the plates of the capacitor after the slab has been inserted?
The temperature coefficient of resistivity is a quantity that is:
a. always positive. b. always non-negative. c. sometimes negative. d. represented by the symbol ?.