A 3.0-kg object and a 5.0-kg object hang vertically at the opposite ends of a very light rope that goes over an ideal pulley. If the objects are gently released, what is the resulting acceleration of the objects?
A) 0.00 m/s2
B) 3.7 m/s2
C) 2.5 m/s2
D) 4.9 m/s2
E) 6.1 m/s2
C
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A 385-g tile hangs from one end of a string that goes over a pulley with a moment of inertia of 0.0125kg.m2 and a radius of 15.0 cm. A mass of 710 g hangs from the other end of the string. When the tiles are released, the larger one accelerates downward while the lighter one accelerates upward. The pulley has no friction in its axle and turns without the string slipping. What is the tension in the string on the side of the 710-g tile?
A) 9.77 N B) 5.59 N C) 3.68 N D) 6.87 N E) 4.41 N
For chlorine gas, the van der Waals constants are: a = 0.658 J?m3/mol2, and b = 5.62 × 10-5 m3/mol. A 3.0-L tank contains 10.0 moles of chlorine gas at a temperature of 625 K. What is the pressure in the container?
A) 14.0 MPa B) 13.5 MPa C) 17.3 MPa D) 11.0 MPa E) 18.2 MPa
In which of these locations is cosmic ray intensity greatest?
A) Mexico City B) Toronto C) Singapore D) all about the same
Draw all zones and layers of the Sun from the interior through the atmospheres and beyond, if needed
What will be an ideal response?