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1. Why is it helpful to measure the specific gravity of a mineral?
2. How would a mineral's specific gravity be affected if the mineral contained impurities (other elements not normally part of a mineral's atomic structure)? Why
Part C: What is the change in the internal energy of the gas? (kJ)
a thin rod of length 0.75 m and mass 0.40 kg is suspended freely from one end. it is pulled to one side and then
Consider a container of 2.0 g of hydrogen, H2 (one mole). What electric force do the protons exert on the electrons after they are separated as described
A small package is fired off Earth's surface with an unknown launchspeed at a 42.0^\circ angle with the local horizontal. What was the launch speed of the package
A 75 kg ladder that is 3.0 m in length is placed against a wall at an angle theta. The center of gravity of the ladder is at a point 1.2 m from the base of the ladder. find the static frictional force between the floor and the ladder
A uniform wooden plank of mass 15kg and total length 10m rests on two supports. Find the forces of the two supports on the plank
Total Performance indicator is a quantitative measure of the executive team's ability to effectively manage the resources of the firm. It considers both the historical performance of the firm as well as how well the firm is positioned to compete i..
As the earths climate continues to warm Ice near the piles will melt and be added to the oceans. What effect will this have on the length of the day?
2.00-mol sample of helium gas initially at 300 K, and 0.500 atm is compressed isothermally to 2.00 atm. Noting that the helium behaves as an ideal gas, find (a) the final volume of the gas, (b) the work done on the gas, and (c) the energy transferred..
Consider a black body of surface area 28.0 cm2 and temperature 5600 K. How much power does it radiate
A) What is the moment of inertia of the balance wheel about its shaft? Express your answer using two significant figures. B) What is the torsion constant of the hairspring? Express your answer using two significant figures.
An initially motionless test car is accelerated uniformly to 1.20 × 102 km/h in 8.68 seconds before striking a simulated deer. The car is in contact with the faux fawn for 0.455 seconds, after which the car is measured to be traveling at 65.5 km/h..
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