A 23 kg mass is connected to a nail on a frictionless table by a massless string 1.3 m long. There is no appreciable friction between the nail and the string
If the tension in the string is 51 N while the mass moves in a uniform circle on the table, how long does it take for the mass to make one complete revolution?
A) 5.2 s B) 4.8 s C) 3.8 s D) 4.5 s
B
You might also like to view...
When warm air moves into a cold air mass, the less-dense warmer air rides up over the colder, denser air. This is very similar to
A) orographic lifting. B) adiabatic lifting. C) temperature inversion. D) what happens during a tornado.
A force of is exerted tangentially to a wheel of radius 0.340 m and causes an angular acceleration of 1.20 rad/s2. What is the moment of inertia of the wheel?
A) 4.78 kg ? m2 B) 3.59 kg ? m2 C) 5.98 kg ? m2 D) 7.17 kg ? m2
A solid right circular cylinder of a substance has a radius 10.0 cm and a height 12.0 cm. The mass of the cylinder is 4.00 kg. What is the density of the substance?
A) 1.59 × 103 kg/m3 B) 1.33 × 103 kg/m3 C) 2.12 × 103 kg/m3 D) 1.86 × 103 kg/m3 E) 1.06 × 103 kg/m3
A student has made the statement that the electric flux through one half of a Gaussian surface is always equal and opposite to the flux through the other half of the Gaussian surface. This is
a. never true. b. never false. c. true whenever enclosed charge is symmetrically located at a center point, or on a center line or centrally placed plane. d. true whenever no charge is enclosed within the Gaussian surface. e. true only when no charge is enclosed within the Gaussian surface.