Jim and Mary are carrying Bob on a horizontal stretcher. The uniform stretcher is 2.00 m long and weighs 80 N. Bob weighs 600 N. Bob's center of gravity is 80 cm from Mary. Jim and Mary are at the ends of the stretcher. The force that Jim is exerting to support the stretcher, with Bob on it, is
A. 280 N.
B. 320 N.
C. 380 N.
D. 400 N.
E. 520 N.
A. 280 N.
Physics & Space Science
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Moment of Inertia: The L-shaped object shown in the figure consists of three small masses connected by thin uniform rods, each rod of mass 3.00 kg. Assume that the masses shown are accurate to three significant figures. What is the moment of inertia of this object (a) about the x-axis, and (b) about the y-axis?
What will be an ideal response?
Physics & Space Science
The star's color index is a quick way of determining its
A) density. B) mass. C) composition. D) temperature. E) luminosity.
Physics & Space Science
A huge explosion is heard 20 miles away. How long does it take the sound to travel that far? (20 miles = 32,000 meters)
Physics & Space Science
A particle with __________ obeys the Pauli exclusion principle
Fill in the blank(s) with correct word
Physics & Space Science