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A gold prospector finds a solid rock that is composed solely of quartz and gold. The mass and volume of the rock are, respectively, 10.8 kg and 0.00432 m^3. The density of gold is 19 300 kg/m^3, and the density of quartz is 2660 kg/m^3. Find the mass of the gold in the rock.
A spacecraft is in orbit around a planet. The radius of the orbit is 2.9 times the radius of the planet (which is R = 71483 km). What is the period of the spacecraft's orbit
Monochromatic light of wavelength 600 nm illuminates a single slit of width 6.5 um and a diffraction pattern is created on a wall. The central maximum has a width of 3.5m. Determine the separation between the slit and the wall.
How fast is the center of mass of the two-stone system. A worker stands still on a roof sloped at an angle of 28° above the horizontal. He is prevented from slipping by a static frictional force of 470 N. Find out the mass of the worker.
a solenoid is made of 283 turns of wire wrapped around a hollow cylinder of radius 1.30 cm and length 6.78 cm. what is
A transformer has 3,840 turns in the secondary. The inputvoltage is 110V, the output current is 6.5A. the input current is0.5A. Calculate the output voltage
Jack is a second-grade student. He seems to have no interest in learning, frequently daydreaming in class and frequently disrupting the class by throwing objects at other students. Explain how a bio psychosocial approach may provide both an integrate..
A vertical tube 1.9cm in diameter and open at the top contains 4.0g of oil (density 0.82 g/cm^3) floating on 4.0g of water. Find the gauge pressure at the oil-water interface
a 3.00 x 10^-3 kg lead bullet travels at a speed of 2.4 x10^2 m/s and hits a wooden post. what is the increase in temperature of the embedded bullet
a 9.5-kg monkey is hanging by one arm from a branch and is swinging on a vertical circle. as an approximation assume a
One mole of an ideal gas does 3000J of work on its surroundings as it expands isothermally to a final pressure of 1.00atm, find the initial volume and the temperature of the gas
Seven grams of water are placed in a 2.03 liter pressure cooker and heated to 488 deg C. What is the pressure inside the container
A bone is found in your backyard. You decide to date it and discover is has an C-14 activity of 0.097 Bq per gram of carbon. Find the age of the bone
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