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Gold has a density of 19.3 g/cm3, and quartz has a density of 2.65 g/cm3. A sample of quartz contains gold. If the quartz sample has a mass of 10 g and a volume of 3 cm3, what is the mass in grams of gold in the quartz sample?
For each fluid, determine the velocity and thermal boundary layer thicknesses at a distance of 40 mm from the leading edge
A hotel elevator ascends 200 meter with maximum speed of 5 m/s. Evaluate how long does it take to make the complete trip from the bottom to the top
In a Compton scattering experiment, an x-ray photon scatters through an angle of 21.0° from a free electron that is initially at rest. The electron recoils with a speed of 2,520 km/s.
An object is placed 14.0 centimeter in front of a convex mirror, the image being 6.65 centimeter behind the mirror. Find how far in front of the mirror is the second object placed
At the moment, the number of electrons in your body is essentially the same as the number of protons, giving you a net charge of zero. Find the magnitude of electrostatic force each of you experiences
As Shown in the figure, there are 3 point charges along the x-axis located at 3,8, and 11 cm. What is the x-component of the force on the charge located.
What is the period of oscillation of the individual masses? What is the maximum potential energy stored in the spring?
A string, which has a mass of 0.50 kg and a length of 3.0 meters, is clamped on both ends. If the tension in the string is 25 Newtons, what are the lowest 3 natural frequencies of oscillation of the string? For each case, include a sketch of the s..
Using a diesel fired boiler with an efficiency of 80%.How many liters of diesel is required to create 1000kg of steam at 120degrees Celsius from make up water at 20 degrees Celsius.given that enthalpy of steam at 120 degrees Celsius is 2706.3kJ/kg..
Two Train cars are on a smooth level track. Car 1 has an initial mass of 10,000 kg and an initial speed of 18 m/s. what is the speed and kinetic energy of the connected cars after the collision
an average human dna molecule contains 5 x 108 base-pairs each of which could be regarded as a rung on the dna ladder
Water flows steadily from an open tank as shown in the figure. (Figure 1) The elevation of point 1 is 10.0 , and the elevation of points 2 and 3 is 2.00.
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