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Which element has 55 neutrons, 36 electrons, 40 protons and has a mass of 95. I know its 95Mo but does it have a ion charge of +2,+4,or+6? I've tried +2 and +6 but its wrong. Help would be appreciat
The tune-up specifications of a car call for the spark plugs to be tightened to a torque of 38Nm . You plan to tighten the plugs by pulling on the end of a 30-cm-long wrench. With what force must yo
A playground merry-go-round of radius R = 1.80 m has a moment of inertia I = 255 kg · m2 and is rotating at 9.0 rev/min about a frictionless vertical axle. What is the new angular speed of th
A solution containing 26.50mg of an unknown protein per 29.5mL solution was found to have an osmotic pressure of 3.75torr at 13C. What is the molar mass of the protein
A new electric power plant has an efficiency of 42%. how many are essentially lost as waste heat (in barrels of oil) to the environment
Calculate the osmotic pressure of a solution containing 25.9g of glycerin (C3H8O3) in 243.5mL of solution at 310K.
0.45 kg of a metal at 90.°C is added to 0.40 kg of water at 20.0°C. If the final temperature of the mixture is 26.°C, what is the specific heat of the metal
Ten meter long steel railroad rails are laid end to end, with no space between, on a hot day when the temperature is 115.°F. How much space now exists between each rail
You place a 4.47-mm-high diamond on the axis of and 11.3 cm from a lens with focal length -6.79 cm. How high is the image
A pump flows 100 gal/min of water. The inlet pressure is 0 psig and the outlet pressure is 20 pisg. How much electricity (kW) is required to power the motor
Determine the electrostatic potential energy of an electron in the ground state of the hydrogen atom
An aqueous solution containing 16.2g of an unknown molecular (nonelectrolyte) compound in 102.0g of water was found to have a freezing point of -2.0C.
A rigid (constant volume) container holds 4.6 moles of an ideal gas initially at 190 K and 2.0 atm. How much gas is in the container at the final pressure and temperature
Calculate the vapor pressure of a solution containing 25.3g of glycerin C3H8O3 in 125mL of water at 30.0C. The vapor pressure of pure water at this temperature is 31.8torr}
According to highly accurate GPS-measurements , the continent of North America is drifting with a speed of 1cm/year. estimate the kinetic energy the continental US has
A beam of neutral hydrogen atoms with a speed of 104 m/s along the x-axis enters a 1 m long region, compute The acceleration of the atoms while in the magnetic field region
Calculate the vapor pressure of a solution containing 25.3g of glycerin C3H8O3 in 125mL of water at 30.0C. The vapor pressure of pure water at this temperature is 31.8torr}. Assume that glycerin is
A motorist drives south at 22.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 3.00 min, Find the total vector displacement and south west
The battery charger for an MP3 player contains a step-down transformer with a turns ratio of 1:27, What voltage does the secondary coil of the transformer provide
A 2.00-ton automobile is parked at the top of a hill that is 100ft high and inclined 25 degrees with respect to the horizon. find the automobile velocity (ft/s) at the bottom of the hill
the wavelegnth corresponding to maxium in the Plank distribution at the temperature T, and deduce the expression for the constant as a multiple of the second radiation constant
One end of a cord is fixed and a small 0.550-kg object is attached to the other end, find the tangential and radial components of acceleration
A is the sequence Na, Mg, Al, Si, and P. B is the sequence He, Ne, Ar, Kr, and Xe. Which statement below is true. The members of B are decreasing in size.
A 7.9cm diameter horizontal pipe gradually narrows to 5.3cm . When water flows through this pipe at a certain rate, compute the volume rate of flow
A foul smelling gas produced by the reaction of HCl with Na2S was collected, and 1.00 L sample was found to have a mass of 1.52 g at STP. What is the molecular mass of the gas. What is its likely fo