A 2000 kg car is traveling on a banked curved icy road. The velocity of the car is 25.0 m/s and the road has a radius of curvature of 500 m. If the car is to travel on the icy road without sliding, then the angle of the banked road is
A. 25.7 degrees.
B. 21.0 degrees.
C. 12.7 degrees.
D. 10.5 degrees.
E. 7.27 degrees.
E. 7.27 degrees.
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Calculate the angular diameter of the Moon with these known facts: Moon's linear diameter = 3480 km Moon's average distance from Earth = 384,000 km number of arc seconds in 1 radian = 2.06 x 10^5
a. 31 arc seconds b. 187 arc seconds c. 1750 arc seconds d. 1870 arc seconds e. 1910 arc seconds
A block of wood and a block of copper will feel neither hot nor cold to your touch when they each have
A) equal temperatures. B) your temperature. C) equal conductivities. D) none of the above
An extremely large collection of stars bound together by gravitational attraction and occupying a huge volume of space is called a _______________
a. planetary nebula b. solar system c. universe d. galaxy
A barge is 10.0 m wide and 60.0 m long and has vertical sides. It is floating in fresh water. A load of 6.00 MN is placed on the barge. How much does its hull sink into the water?
A) 5.00 m B) 7.21 m C) 10.2 cm D) 10.0 m E) 1.02 m