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In being launched from rest it moves through a distance of 87 m and has a kinetic energy of 5.30 x 107 J at lift-off. What is the work done on the jet by the catapult?
We want 1 liter of 0.1M NaCl and we have 4M stock solution. How much of 4M solution and how much dH2O will we measure out for this dilution.
Calculate the electrostatic potential V at all points in space outside of the surface of the conductors.
Calculate the pH of a solution prepared by mixing 15.0 mL of 0.50 M NaOH and 30.0 mL of 0.50 M benzoic acid solution. (Benzoic acid is monoprotic; its dissociatio constant is 6.5 X 10^-5.)
How many grams of an organic compound (molecular mass 75.0) must be dissolved in 500.0 grams of acetic acid to lower the freezing point of the solution to 0.00degrees C?
(1) A proton moves in the positive x direction through a uniform magnetic field in the positive y direction. What is the direction of the magnetic force on the proton? Explain your answer.
How far from the edge of the counter does the cat land? What is the cat's velocity (magnitude and direction) when it lands on the counter?
If the freezing point ofa solution containing 0.258 grams of a substance dissolved in 40grams of benzene is 5.20 deg C, what is the molecular mass of the substance?
What is the lowest frequency to which a resonance tube and (1) meter long will repond under the conditions of your experiment which is velocity of sound?
Dip theloop into the sollution to form a soap film in the loop. Reflect light from a desk lamp into the the soap film. Describe the the color patterns you see.
What are the three major types of intermolecular in pure covalent bonds? What are the relative strengths of these forces? How do they influence boiling points/melting points and solubility in any so
Determine how close the permanent magnet mujst be to a steel paper clip ( or other small metal object) to make it move. Notice how close it must be to pick the object up. Record results. Repeat with
a) What is acceleration of each sprinter? b) What are their respective maximum speeds? c)Which sprinter is ahead at the 6.00 s mark,and by how much? d) What is the maximum distance by which Healan i
Calculate the theoretical yield of meso-hydrobenzoin if 46 mg sodium borohydride were the limiting reagent. Provide answer to the nearest mg.
(a) Determine the radius of the electron's orbit? (b) Determine the electric force between the particles. (c) Determine the gravitational force between the particles. (d) Which force holds the elect
A dipole with a positive charge of 3.0uC and a negative charge of -3.0uC is centered at the origin and oriented along the x axis with the positive charge located to the right of the origin. The char
What nucleophile could be used to react with butyl iodide to prepare the following compound? If your answer is a metal salt,omit the metal and draw the compound as an anion.
Objects measure with masses m1=10.0 kg and m2=5.00 kg are connected by a light string that passes over a frictionless pulley. If, when the system starts from rest, m2 falls 1.0 m in 1.20 s, determin
Each vile has .8 millimoles of solute/liter in 100 microliters of solvent. How many viles do you need to add to a beaker of 100 ml of solvent to have a concentration of 10 micromoles of solute/liter
When 25.0 mL of 0.640 M H2SO4 is addedto 25.0 mL of 1.28 M KOH in a coffee-cup calorimeter at23.50°C, the temperature rises to 30.17°C. CalculateΔH of this
Steam at 100 degree C is bubbled into 0.230 kg of water at 28 degree C in a calorimeter cup, where it condenses into liquid form. How much steam will have been added when the water in the cup reache
To decrease the body temperature of a 73 kg person by 1.0 degree C, what mass of alcohol must be evaporated from person's skin? Ignore the heat involved in raising the temperature of alcohol to its
A syringe contains 0.65moles of He gas that occupy 750.0 mL. What volume (in mL) of gas will the syringe hold if 0.35 moles of Ne is added?
Assume that all the power delivered to the wires is used immediately to melt the ice. Find the cross-sectional area of each wire?
A cylindrical copper cable carries a current of 1200 A. There is a potential difference of 1.6*10^-2 V between two points on the cable that are 0.24 m apart. What is the radius of the cable?