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The suitable metric unit for measuring or explaining the size of part of aspect of car. Find practical reasons for wanting to know sizes of the parts or aspects of car?
Determine how fast must the bat fly, Vb, to hear a beat frequency of around 205 kHz?
An object is initially at xi = 0 cm position of a meter stick positioned on the x-axis. A converging lens having focal length of 26.0 cm is fixed at the position 32.0 cm. Then we slowly slide the o
i) An electric field having magnitude 4330 N/C is exerted all along the x axis. Compute the electric flux via a rectangular plane 0.377 m broad and 0.74 m long when the plane is parallel to the yz
Determine the power of thermal radiation emitted through a sphere with a surface area fo 2.5m^3, an emissivity of 0.7 and a temperature of 250 deg-C?
What is the molecular weight of the unknown gas? An effusion apparatus can be used to determine molecular weights. In one experiment the effusion of CHCl3 is detected to be 10.35 min and in a
When the rocket consists of an initial mass of around 6500 kg and ejects gas at a relative velocity of magnitude 1900 m/s, determine how much gas should it eject in the first second to encompass an
Determine the pH of the resulting solution if the 25 mL of .432Mmethylamine, CH3NH2 is added to 15 mL of .234M HCL?
A slit of width 0.20 mm is illuminated having monochromatic light of wavelength 550 nm, and a diffraction pattern is made on a screen 1.2 m from the slit. Determine the widths of the second and thir
48.12 g of a metal at 98.8 degrees Celsius are mixed in the same calorimeter with 50.0 mL of water at 22.0degrees Celsius. The final temperature of the mixture is 34.1degrees Celsius.
Determine the mass of zinc reacted at the 298K, 1.00atm, if 50.0mLhydrogen gas is evolved in reaction zinc with hydrochloric acid solution.
When the ball strikes you and bounces off your chest, so that afterwards it is moving horizontally at 8.00 in the opposite direction, find out your speed after the collision?
What is the half reaction for the deposition of silver if a constant electric current deposit 0.365g of silver metal in the 12960 seconds from a solution of silver nitrate which is having the
A particle having mass m0 is given a kinetic energy equivalent to one-third its rest-mass energy. Determine how fast must the particle be traveling?
Determine the standard molar enthalpy of formation of formic acid. The standard molar enthalpy of combustion of formic acid, CH2O2 (l), to produce the carbon dioxide and water is -210.607 KJ/mol.
If an aluminum bar is temporarily joined among a hot reservoir at 720 K and a cold reservoir at 368 K, 2.20 kJ of energy is transferred through heat from the hot reservoir to the cold reservoir. (i
Identify the wavelength of the line in the spectrum of the hydrogen atom that arises from the transition of the electron from the orbital with n =5 to the orbital with n = 1?
Find out the de Broglie wavelength which is associated with a baseball that is moving with a velocity of 98 mph. A baseball weighs 220 g. Top speed for a professional pitcher is about 100 m
Aluminum wiring rated at 30.0 A maximum current is to be installed in the home. For safety reasons, it must generate no more heat than 15 watts per meter of length. (Aluminum resistivity is around 2
Determine how many grams of mixture are required to provide the 245 kJ of heat when the ammonium nitrate is an oxidizing agent and can give rise to explosive mixtures.
The first step in the preparation of lead from its ore (galena, PbS) consists of roasting the ore.Determine the standard enthalpy change for this reaction using enthalpies of formation.
When a line drive is strike essentially horizontally at this speed and is caught through a 65.0 kg player who has leapt directly upward into the air, determine what horizontal speed (in cm/s) does h
The specific heat of copper metal was measured by putting a piece of the metal weighing 35.4 g in the hot water. The quantity of heat absorbed by the metal was measured to be 47.0 J from the tempera
Compute the wavelengths in air at 20°C for sounds in the maximum range of human hearing, 20 Hz to 20,000 Hz.
When 21.45 g of potassium nitrate, KNO3, was dissolved in the water in a calorimeter, the temperature fell from the 25.00*C to14.14*C. What is the ΔH for the solution process?