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The small wheel has a radius of 2.0 cm and accelerates at the rate of 7.5 rad/s2, and it is in contact with the pottery wheel (radius 25.0 cm) without slipping. (a) Calculate the angular acceleration
Assuming the shuttle lands at 243.9 mph, has 7 astronaunts each with a weight of 200 kg, and a payload weight of 23298 kg, find how much energy (in GJ) the shuttle has the second that it lands (does
When 3.56 g of an unknown hydrocarbon was dissolved in 125 g of benzene, the freezing point of the solution was found to be4.41oC. Analysis of the hydrocarbon showed that it contained 93.71% carbon (b
Using this information and the fact that the astronaunt has a weight with his suit of 240 N on Mars, find the average depth of the crater.
A chemist wishes to prepare 250 ml of a buffer that is pH = 4.5.Beginning with 100 mL of 0.12 mol/L acetic acid and a supply of0.10 mol/L NaOH, explain how this could be done.
A snowmobile is originally at the point with position vector 27.5 m at 95.0° counterclockwise from the x axis, moving with velocity 4.17 m/s at 40.0°. It moves with constant acceleration 1.8
A 44.0Ω resistor and a 94.1 Ω resistor are connected in parallel ,and the combination is connected across a 120V dc line. what is the resistance of the parallel combination?
A 1.00 mL pipet sample of dilute acetic acid required 23.4 mL of 0.10 M NaOH to titrate the sample to a phenolphthalein endpoint. Calculate the concentration of acetic acid in the sample.
See the workshop manual for expressions for height, range and flight time as a function of initial speed and launch angle. Use the local value of g given in Appendix A.i) What is the maximum height
What is the magnitude of the bullet's accelaration in m/s2 as it passes through the board?
Dimethylhydrazine is a C-H-N compound used in rocket fuels. When burned completely, a 0.312g sample yields 0.458g CO2 and0.374g H2O. The nitrogen content of a 0.486g sample is converted to 0.226g N2
What is the minimum number of blubs that can be used on the string? What is usually the major frustration of this type of wiring?
If a reaction is exothermic, predict the effect (shift right, shiftleft, or no effect) of increasing and decreasing the reaction temperature. How does the value of the equilibrium constant depend on
A 2 000 kg sailboat experiences an eastward force of 3 000 N by the ocean tide and a wind force against its sails with magnitude of 6 000 N directed toward the northwest (45 degrees N of W). What is
Two blocks, joined by a string, have masses of 6.0 kg and 9.0 kg. They rest on a frictionless horizontal surface. A 2nd string, attached only to the 9 kg block, has horizontal force = 30 N applied t
An arrow is shot at an angle of 45 degrees above the hortizontal. The arrow hits a tree ditance D= 220m away, at the same height aboventhe ground as ut was shot. Use g = 9.8m/s2 for the magnitude of
When enzymes are present in very low concentrations, their effecton the rate of a reaction can be described using first-order kinetics.
The heating element wire shorts out and in repairing it, the owner sortens the wire length by 10%. (assume the temperature is unchanged) the shorter heating wire has an effect on the power dissipat
If the two-block system acclerates at 0.5 m/s2, what is the tension in the second string attached to the 8 kg mass?
You have toseparate 4-toluic acid (a strong acid, pKa 4.36 - look upstructure) from 4-bromoaniline (a base - look up structure).Assume the two substances don't react with each other.
The surface of the sun is at approximately 5700K and the temperature of the earth's surface is about 290K. What is the total entropy change occurs when 1000J of heat energy is transferred from the s
If you found this clock running too slowly, explain how would you adjust the circuit parameters to make it run faster?
In the titration of acetic acid and NaOH titration the use of the color indicator mandates that excess base be added in order to detect the reaction endpoint.
A silver bar of length 30 cm and a cross-sectional area 1.o cm2 is used to transfer heat from a 100oC reservoir to a 0oC block of ice. How much ice is melted per second? (For silver, k= 427 J/s.m.oC
You have a 1 liter container which contains 0.5 liters of water at 25 degrees celsius that is sealed. You then add 1 μg of phenanthrene to the water. The phenanthrene has a K' H of 0.001 and