A uniform rod of length 4L, mass M, is suspended by two thin strings, lengths L and 2L as shown. What is the tension in the string at the left end of the rod?
2
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The Sun's magnetic field is very weak compared to Earth's
Indicate whether the statement is true or false
The figure is a graph of the vertical velocity versus time for an elevator. Solve graphically for the height of the elevator above the starting point at t = 20 s.
A. 4.0 m
B. 16.0 m
C. 0.0 m
D. 8.0 m
Which moon did the Huygens spacecraft land on?
A) Titan B) Ganymede C) Triton D) Callisto E) Europa
Projectile Motion: A hockey puck slides off the edge of a horizontal platform with an initial velocity of 28.0 m/s horizontally in a city where the acceleration due to gravity is 9.81 m/s2. The puck experiences no significant air resistance as it falls. The height of the platform above the ground is 2.00 m. What is the angle below the horizontal of the velocity of the puck just before it hits the ground?
A. 77.2° B. 72.6° C. 12.8° D. 12.6° E. 31.8°