Due to its elliptical orbit, Mars is farther from the Sun on average during winter in the Southern Hemisphere. This means Southern Winter on Mars will be
A) long and mild
B) short and hot
C) long and cold
D) short and mild
C
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The cones provide us with the ability to see color. In addition they
A. are responsible for our night vision B. are responsible for our peripheral vision C. allow us to see fine detail in well lit conditions
A 2.00-kg object is attached to an ideal massless horizontal spring of spring constant 100.0 N/m and is at rest on a frictionless horizontal table. The spring is aligned along the x-axis and is fixed to a peg in the table
Suddenly this mass is struck by another 2.00-kg object traveling along the x-axis at 3.00 m/s, and the two masses stick together. What are the amplitude and period of the oscillations that result from this collision? A) 0.300 m, 1.26 s B) 0.300 m, 0.889 s C) 0.424 m, 0.889 s D) 0.424 m, 1.26 s E) 0.424 m, 5.00 s
The speed of a particle moving in a circle 2.0 m in radius increases at the constant rate of 4.4 m/s2 . At an instant when the magnitude of the total acceleration is 6.0 m/s2, what is the speed of the particle?
a. 3.9 m/s b. 2.9 m/s c. 3.5 m/s d. 3.0 m/s e. 1.4 m/s
Mass on a Spring: A 1.15-kg beaker (including its contents) is placed on a vertical spring scale. When the system is sent into vertical vibrations, it obeys the equation y = (2.3 cm)cos(17.4 s-1 t). What is the force constant (spring constant) of the spring scale, assuming it to be ideal?
Fill in the blank(s) with the appropriate word(s).