Tarzan swings back and forth on a long vine. His friend Jane notices in amazement that he makes 30 complete swings in 2.4 minutes
(a) What is the frequency (in hertz) of Tarzan's swing?
(b) How long is the vine he is using?
What will be an ideal response?
(a) 0.21 Hz (b) 5.7 m
You might also like to view...
A conductor is distinguished from an insulator with the same number of atoms by the number of:
A) nearly free atoms B) electrons C) nearly free electrons D) protons E) molecules
A particle whose charge has the specified sign enters a region of space where the magnetic field has the direction shown. What is the initial direction of the magnetic force acting on the particle in each case?
A. Forward
B. Backward
C. Rightward
D. Leftward
E. Into the paper
F. Out of the paper
T. (Zero force)
Heat is energy that is transferred between objects that are in thermal contact because of a temperature difference
Indicate whether the statement is true or false
A 500-eV electron and a 300-eV electron trapped in a uniform magnetic field move in circular paths in a plane perpendicular to the magnetic field. What is the ratio of the radii of their orbits?
a. 2.8 b. 1.7 c. 1.3 d. 4.0 e. 1.0