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A yo-yo has a rotational inertia of 900 g·cm2 and a mass of 100 g. Its axle radius is 3.3 mm and its string is 100 cm long. The yo-yo is thrown so that its its initial speed down the string i
Calculate the freezing point and boiling point of a solution that contains 50.7 g NaCl and 40.0 g KBr dissolved in 750.3 mL H2O.
A 78 RPM record player, playing a 12 inch diameter spins up in 1.5 seconds, if a bug at the edge has sticky feet (us = 0.8), at what point in time does the bug slip off the record?
An industrial laser is used to burn a hole through a piece of metal. The average intensity of the light is = 3.82 x 109 W/m2. What is the rms value of (a) the electric field and (b) the magnetic field
Let's see if it makes sense for a major US city to utilizeits municipal solid waste (MSW) as a sustainable biomass feedstock.Using Chicago as a model Mid western US city where the average citizen pr
The average intensity of sunlight at the top of the earth's atmosphere in 1390 W/m2. What is the maximum energy that a 34-m x 49-m solar panel could collect in 1.5 hours in this sunlight?
What fraction of the power radiated by the sun is intercepted by the planet Mercury? The radius of Mercury is 2.44 x 106 m, and its distance from the sun at the moment is 5.83 x 1010 m. Assume that th
Is it bromocyclohexane? One of the requirements for reactivity inSn1 reactions is a stable carbocation. Does cyclohexane holda positive charge better than cyclopentane?
Were interested in determing the amound of citric acid in a sample of 7-up. Will our results be different if we use a sample that has been open for an hour instead of a freshly opened bottle? Why?
Since molarity is a concentration unit used mainly by chemists, the concentrations of commercial solutions are normally measured by the percentage of solute in the solution.
A space probe on the surface of Mars sends a radio signal back to the Earth, a distance of 7.79 x 107 km. Radio waves travel at the speed of light (3.00 x 108 m/s). How many seconds does it take for t
The frequency of these radio waves is the same as the frequency at which the object oscillates. What is the spring constant of the spring?
Why is it that the outermost electrons are strongly attracted to the nucleus when nuclear charge increases but on theother hand, why is it least attracted to the nucleus?
A(n) 6 g bullet is fired into a 394 g block that is initially at rest at the edge of a frictionless table of height 1 m. The bullet remains in the block, and after impact the block lands 1.8 m from
Find the distance the larger bead moves along the wire in the first 4.9 s following the collision. Answer in units of cm.
A 0.26 kg rock is thrown vertically upward from the top of a cliff that is 36 m high. When it hits the ground at the base of the cliff the rock has a speed of 32 m/s. Find the greatest height of the
Calculate the density of CO2 gas at STP (in g/l)3) A cylinder in a gasole engine initially has a volume of0.50L and contains gases that exert a pressure of 101.3 kPa.
A boy leaves home and sets out at a constant of 2.0m/s[E]. Fifteen minutes later, his mother notices that his lunch is on the kitchen table counter. Starting from rest, she sets out at 0.1m/s2 [E].
How do you convert ethylbenzene to 1,6-dibenzyl-2-oxy-hexane, and all carbon reagentsmust be made from the starting material?
Using your results from part a, find the speed of the crate after sliding this distance.
One mole of gas occupies a volume of 22.4l at STP. Calculate the temperature and pressure conditions needed to fit two moles of a gas into a volume of 22.4L.
At a local playground, a child on a swing has a speed of 2.2 m/s when the swing is at its lowest point. a.) To what maximum vertical height (above the bottom of the swing) does the child rise, assumin
The image of the united states postage stamps is 1.5 times the size of the actual stamps in front of a lens. determine the focal length of the lens if the distance from the lens oto the stamps is 2.
A 8.9 cm diameter loop of wire is initially oriented perpendicular to a 1.3 T magnetic field. The loop is rotated so that its plane is parallel to the field direction in 0.26 s.
Find the magnetic flux through an individual turn of the coil if the magnetic field makes an angle of 45 with the normal to the plane of the coil. Answer in units of mWb.