Total # Posts: 14
The tracks of the astronauts who landed on the moon are still there in the dust and show no signs of being worn away. This is attruted to the lack of atmosphere on the moon. Which of the following best accounts for the lack of atmosphere. 1)the moon's weak gravity 2)the ...
May 4, 2016
Professor Smith gives only a midterm exam and a final exam. The average is computed by taking 1/3 of the midterm exam score and 2/3 of the final exam score. To get a C or better students must have at least 70 semester average. If Laura scored only a 59 on the ...
June 3, 2013
Jen and Heather went to lunch. When the bill came, Jen discovered she had only $8. Luckily, Heather had enough money to pay the other part, 3/5, of the bill. How much did Heather pay? How much was the total bill?
November 29, 2010
To hoist himself into a tree, a 66.0-kg man ties one end of a nylon rope around his waist and throws the other end over a branch of the tree. He then pulls downward on the free end of the rope with a force of 366 N. Neglect any friction between the rope and the branch, and ...
September 30, 2010
two lines intersect in a plane and form four angles. one of the angles formed by this intersection is a 53degree angle. What are the measures of the other three angles? explain your answer
March 3, 2010
An automobile tire has a radius of 0.380 m, and its center moves forward with a linear speed of v = 19.0 m/s. (a) Determine the angular speed of the wheel. (Assume that there is no slipping of the surfaces in contact during the rolling motion.) rad/s
April 4, 2008
In an automatic clothes drier, a hollow cylinder moves the clothes on a vertical circle (radius r = 0.39 m), as the drawing shows. The appliance is designed so that the clothes tumble gently as they dry. This means that when a piece of clothing reaches an angle of above the ...
April 4, 2008