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A gold prospector finds a solid rock that is composed solely ofquartz and gold. The mass and volume of the rock are, respectively,14.2 kg and 3.92 × 10-3m3. The density of gold is 19 300kg/m3, and the density of quartz is 2660kg/m3. Find the mass of the gold in the rock.
The New England Merchants Bank Building in Boston is 152 m high, What is the total distance, side to side, that the top of the building moves during such an oscillation
A parallel-plate capacitor has a voltage V = 6.0 V between itsplates. Each plate carries a surface charge density σ = 7.0nC/ m2. What is the distance between the plates?
A water molecule, which is electrically neutral but has a dipole moment of magnitude p = 6.20·10-30 C m, Calculate the magnitude of the net force
What will be the equilibrium temperature when a 268 g block of copper at 319°C is placed in a 167 g aluminum calorimeter cup containing 826 g of water at 12.3°C?
A rocket carrying a satellite is accelerating straight up from the earth's surface. At 1.10 s after liftoff, the rocket clears the top of its launch platform, Calculate the magnitude of the average velocity of the rocket
A mass m2 = 1.8 kg, on a 39.4° incline, is connected to a mass m1 = 5.2 kg, on a horizontal surface. find the magnitude of the tension in the connecting cord
a person pushes a 24.5-kg shopping cart at a constant velocity for a distance of 39.8 m on a flat horizontal surface.
An ultralight plane and pilot have a total mass of 150 kg. what is the net force acting on the plane and pilot
A force, 20N, is applied to a 2 kg block on a tabletop with a coefficient of friction of 0.3. The force is applied to the right, above the horizontal at 60 degrees.The object is pulled to the right along the surface for a distance of 5m. What work wa..
A carnot engine operates between asource temerature of 700 degrees celsius and a sink temperatiure of 20 degrees celsius. determine the efficiency of the engine
Your little sister (mass 25.0 kg) is sitting in her little red wagon (mass 8.35 kg) at rest. Calculate the impulse you imparted to the wagon and its passenger
A wave on a string is described by, y(x, t) = 17.0 sin(?x/8 - 8?t) where x and y are in centimeters and t is in seconds. (a) What is the transverse speed for a point on the string at x = 7.45 cm when t = 0.270 s? m/s (b) What is the maximum transv..
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