The figure shows two forces, each of magnitude 4.6 N, acting on an object
The angle between these forces is 40°, and they make equal angles above and below the horizontal. What third force will cause the object to be in equilibrium (acceleration equals zero)?
A) 8.6 N pointing to the right
B) 7.0 N pointing to the right
C) 4.3 N pointing to the right
D) 3.5 N pointing to the right
Answer: A
You might also like to view...
A light-year is
A) about 10 trillion kilometers. B) the time it takes light to reach the nearest star. C) the time it takes light to travel around the Sun. D) about 300,000 kilometers per second.
A tiny pig is dropped from the top of a building and lands safely on a trampoline. The tiny pig will have an increase in what type(s) of energy as it falls?
a. Gravity b. Potential energy c. Kinetic energy d. All of the above
The earliest evidence of ancient life, blue-green algae, are
a. cyanobacteria. b. amber. c. foraminifera. d. coal.
Charge of uniform density (40 pC/m2) is distributed on a spherical surface (radius = 1.0 cm), and a second concentric spherical surface (radius = 3.0 cm) carries a uniform charge density of 60 pC/m2. What is the magnitude of the electric field at a point 2.0 cm from the center of the two surfaces?
A. 1.1 N/C B. 4.5 N/C C. 1.4 N/C D. 5.6 N/C E. 0.50 N/C