Coefficient of friction between the block and plane
A block weighing 100lbs rests on a rough level plane. The coefficient of friction is between the block and the plane is 0.42. what inclined push 45 degrees from the horizontal will cause the block to move?
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Calculate the pH during the titration of 30.00 mL of 0.1000 M KOH with 0.1000 M Hbr solution after the following additions of acid: 0 mL 15.00 mL 29.00 mL 29.90 mL 30.00 mL 30.10 mL 40.00 mL
Assuming he jumps off just before the truck's front reaches a pole, how many poles are between Bond and the truck when Bond jumps off?
Consider a simple harmonic oscillator. Calculate the time averages of the kinetic and potential energies over one cycle, and show that these quantities are equal.
A carbon-hydrogen-nitrogen-oxygen compound has a molecularmass of 116.12 u. In a combustion analysis, a 2.464 g sample yields3.735 g CO2 and 1.530 g H2O.
Separation techniques were performed on a sample containing only sand and salt. The mass of the initial sample was 10.50 g. After the separation, 4.70 g of sand and 5.15 g of salt were recovered. What is the percent recovery of sand and salt?
Four lightweight balls A, B, C, and D are suspended by threads. Ball A has been touched by a plastic rod that was rubbed with wool. When the balls are brought close together, without touching, the following observations are made:What are the charg
When 10.0g of water at 100.0 oC isadded to 100.0g of water at 10.0oCin a calorimeter, the final temperature is 18.0oC. Calculate the heat capacity of the calorimeter. Specific heat of water is 4.18 J g-1K-1
(a) Find the electric flux through each of the six faces of the cube. (b) Add the six values obtained in part (a) to show that the electric flux through the cubical surface is zero, as Gauss' law predicts, since there is no net charge within the c
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