A bird flying at 8 km/h in a 6-km/h crosswind has a resultant speed of
A) 6 km/h.
B) 8 km/h.
C) 10 km/h.
D) 14 km/h.
Answer: C
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As you know, the earth has an orbital period of 1.0 year at an orbital radius of 1.0 AU (astronomical unit, the average distance between the earth and the sun)
If a new "minor planet" were to be found in a circular orbit with radius 13 AU, what would be its orbital period?
The angular velocity of a wheel is given by ?(t) = (2.00 rad/s2)t + (1.00 rad/s4)t3
(a) What is the angular displacement of the wheel from time t = 0.00 s to time t = T? (b) What is the angular acceleration of the wheel as a function of time?
The radiation curve is a plot of light intensity versus frequency for an incandescent source. If this light is first passed through a cool gas, the resulting radiation curve would most probable look like
1) I. 2) II. 3) III. This best illustrates that the atoms of gas have 4) been excited. 5) absorbed part of the light. 6) simplified selective frequencies of the transmitted light.
A carbon resistor is made of a cylinder of carbon, of length 1.5 cm. If the resistivity of carbon is 3.5 
and when placed in a circuit a potential difference of 0.15 V exists when 12 A flows across the resistor, what is the radius of the cylinder?
A. 6.5 mm B. 12 mm C. 3.7 mm D. 1.2 mm