A person weighing 180 pounds stands on snowshoes. If the total area of the 2 snowshoes is 900 square inches, what is the pressure on the snow?
0.2 psi
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In what manner have astronomers and physicists made tests to confirm that Einstein's theory of general relativity is actually a proper description of gravitational phenomena?
What will be an ideal response?
If a conductor is in electrostatic equilibrium near an electrical charge:
a. the sum of all forces between the conductor and the charge must be zero. b. the total charge on the conductor must be zero. c. any charges on the conductor must be uniformly distributed. d. the electric field inside the conductor must be zero.
Spiral arms are concentrated at the center of our Galaxy
Indicate whether the statement is true or false
Banked Curves: A curved portion of highway has a radius of curvature of 65 m. As a highway engineer, you want to bank this curve at the proper angle for a steady speed of 22 m/s.(a) What banking angle should you specify for this curve?(b) At the proper banking angle, what normal force and what friction force does the highway exert on a 750-kg car going around the curve at the proper speed?
What will be an ideal response?