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A silver rod and a common glass rod both have the same length when at 20.0°C. The silver rod is heated to 52.3°C. To what temperature must the glass rod be heated so that they are again at the same length? Give answer in °C.
Positive pressure is used in blood transfusion. Suppose the pressure in a vein is 0.25kPa and the density of blood is 1.04 x 103 kg/m3, how high above the vein must the blood container be placed
A uniform steel beam has a mass of 1860 kg. On it is resting half of an identical beam, What are the vertical support forces
The average distance from the earth to the sun is called the astronomical unit (AU). does it obey Kepler's third law
A 2.83-kg object is thrown vertically upward from the surface of Mars, where the acceleration due to gravity is g1 = 3.71 m/s2. The initial velocity is v1, and the object reaches a maximum height of y1.
A new record for running the stairs of the Empire State Building was set on February 3, 2003. what was his average power output during the climb
A frictional force of 320 N acts on the rim of a 1.4 m diameter wheel to oppose its rotational motion. What is the torque about the wheel's central axis
q1. a 36.0 g bullet moving at 478 ms strikes a 3.7 kg bag of flour that is on ice at rest. the bullet passes during the
q1. a skier is accelerating down a 30.0deg hill at a 4.50 ms2a what is the vertical component of her acceleration? ms2
A ball with a vertically downwards initial velocity v(0) = 3 m/s collides with a fixed inclined surface. find the velocity of the ball after it rebounds
He-Ne lasers are often used in physics demonstrations. They produce light of wavelength 633 nm and a power of 0.500 mW spread over a cylindrical beam 1.30 mm in diameter, What is the maximum value of the electric field
Three blocks, each of mass 14kg are on a frictionless table. What is the net horizontal force on block A and what is the horizontal force on block A due to block B
A toroidal solenoid has a mean radius of 18.0 cm and a cross-sectional area of 4.00 cm^2 and is wound uniformly with 115 turns. What is the mutual inductance (M) of these coils
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