This photo, taken from orbit of Mars, shows a feature known as
A) Olympus Mons
B) Valles Marineris
C) Ishtar Terra
D) Hellas Basin
A) Olympus Mons
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Two boxes are connected by a weightless cord running over a very light frictionless pulley as shown in the figure. Box A, of mass 8.0 kg, is initially at rest on the top of the table
The coefficient of kinetic friction between box A and the table is 0.10. Box B has a mass of 15.0 kg, and the system begins to move just after it is released. (a) Draw the free-body diagrams for each of the boxes, identifying all of the forces acting on each one. (b) Calculate the acceleration of each box. (c) What is the tension in the cord? What will be an ideal response?
Might changes in the Sun affect weather or climate on Earth?
What will be an ideal response?
A container of an ideal gas at 1 atm is compressed to one-third its volume, with the temperature held constant. What is its final pressure?
What will be an ideal response?
When a crate of mass m is dragged a distance d along a surface with coefficient of kinetic friction ?k, then dragged back along the same path to its original position, the work done by friction is
a. 0. b. ??kmgd. c. +?kmgd. d. ?2?kmgd. e. +2?kmgd.