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The position of a particle moving along the x axis depends on the time according to x=ct^2-bt^3, what distance does the particle move and what is its displacement
An element in its solid phase has mass density 2100kg/m3 and number density 4.39×1028atoms/m3. What is the element's atomic mass number
Two trains, each having a speed of s, are headed at each other on the same straight track. what is the total distance the bird travels
An electric vehicle starts from rest and accelerates at a rate a1 in a straight line until it reaches a speed of v. How much time elapses from start to stop
A 1L steel tank is fitted with a safety valve that opens if the internal pressure exceeds 850 torr. It is filled with helium at 23 oC and 0.991 atm and placed in an oil bath.
Runner A is initially 4.0mi west of a flagpole and is running with a constant velocity of 2.0 mi/h due east. How far are the runners from the pole when they meet
At 26.0 m below the surface of the sea (density = 1 025 kg/m3), where the temperature is 5.00°C, what is the volume of the bubble just before it breaks the surface
Calculate the pH at the points in the titration of 40.00 mL of 0.425 M NH3 for the reaction below. NH3(aq) + HNO3 ? NH4+(aq) + NO3?(aq) For NH3, Kb = 1.8x10-5. Enter your answer with 2 decimal place
Arrange the following gaseous substances in order of decreasing root mean square velocity at 25°C. argon, fluorine, carbon dioxide, oxygen, helium A.
Its a cyclohexanol with an oh on the second carbon at the top and a cl on 4 directly opposite, what is the name
The degree of ionization for propionic acid in an aqueous solution which contains 4.00 mol C2H5CO2H in 2.00 L is
It is believed that a large electric fish known as Torpedo occidentalis uses electricity to shock its victims, What is the total amount of work done during one pulse
The owner wants to grow perch and needs the pH around 7.0. If the daily water flow into and out of the pond averages 30 m^3 per day with a pH similar to that of the pond, what is the minimum amount
what resistance would have to be connected in series with a 3V lamp in a 28 V circuit when the operating current of the lamp is .5 A
How and why is the average enthalpy of the reaction changed when a different concentration of sodium hydroxide is used
A metal sphere hangs from a string and has 4 kg of mass. The sphere has a charge of +2.3 µC. What is the electric force on the metal sphere if the magnitude of the electric field is 106 N/C
Choose the correct answer of the following, explain why it is true, and explain why the other choices are untrue: (A) high pE is associated with species such as CH4, NH4+, and Fe2+
What is the maximum amount of work that can be obtained by the combustion of this butane if the gas is first brought to a pressure of 1.00 atm and the temperature is brought to 25 oC? Assume the pro
A capacitor with air between its plates is charged to 80 V and then disconnected from the battery. What is the dielectric constant of this glass
Analysis of water in a sediment sample at equilibrium at ph 7.00 showed [so42-] = 2.00 x 10^-5 m and a partial pressure of h2s of 0.100 atm. show with appropriate calculations if methane, ch4, would
In some industrial processes, sulfite is added to remove dissolved O2 to prevent corrosion of pipes. Write the balanced overall chemical reaction for reduction of dissolved O2 by sulfite (SO32-)
Provide a structure for the following compound: EI mass spectrum: two molecular ions of about equal intensity at m/z = 180 and 182; IR: 1740 cm-1; 1H NMR: 1.30 (3H, t J = 7 Hz); ? 1.80 (3H, d, J = 7
Imagine that we define the rear end of a train 120 m long to long to define the origin X'=0 in the train frame and we define a certain track signal light to define the origin X=0 in the track frame.
Not enough sodium hydroxide was added, so the solution was still acidic when the beaker was heated to convert the copper(II) hydroxide to copper(II) oxide.
The driver of a truck slams on the brakes when he sees a tree blocking the road. With what speed does the truck then strike the tree