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While another customer purchased the dozen orchids and the half dozen African violets for the total of $51.00. Suppose no sales tax, determine the cost of every kind of flower.
A sample of a mixture containing only potassium chloride and sodium chloride has a mass of 4.000g. When this sample is dissolved in water and excess the silver nitrate is added, a white solid AgCl p
A charge of -2.500 μC is positioned at (2.810 m, 4.502 m), and a charge of 1.605 μC is positioned at (-2.682 m, 0). The electric potential at the origin is V = 1.14*103 V. There is one point o
1.6 g of lithium is mixed with 6.95 g of oxygen in a combination reaction. Which product is in excess? Determine the numbers of moles of product are produced?
An automobile having mass 2000 kg moving at 30 m/s, is braked all of a sudden, with a constant braking force of 10000N. Determine how far does the car travel before stopping?
Assuming the pressure is constant, what temperature is required to reduce the volume to 2.01 L when a sample of sulfur hexafluoride gas occupies a volume of 5.14 Lat 130.3°C.
The object is in front of the converging lens (f = 0.30 m). The magnification of the lens is m = 2.3. (i) Relative to the lens, in what direction must the object be moved so that the magnification mod
At sea-level a gas-filled weather the balloon with a volume of 45.0 L is released, where the prevailing conditions are 21.3°C and 758.2torr. The balloon can expand to a maximum volume of 900 L.
i) Compute the wavelength of light in vacuum which consists of a frequency of 6.3 x 1014 Hz. ii) Determine its wavelength in benzene? (The index of refraction of benzene is 1.501.)
Two gases, carbon dioxide (9.5 grams) and krypton (18.4 grams) are confined in a container at a pressure of 710 torr. Determine the partial pressure of krypton in torr.
An object is located 55 cm from a concave mirror of radius 47 cm. (i) Determine the location of the image. (Enter in cm. Employ a negative number when the image is behind the mirror)
At 7400 nm the P fund series of the hydrogen spectrum has as its longest wavelength component a line. Explain the electron transitions that form this series. That is, give a Bohr quantum number tha
You take out the 3-year, $7,000 loan at 8% simple annual interest. Lender charges you a $100 fee. Thinking of fee as additional interest, find actual simple annual interest rate you will pay?
Explain how does the alcohol get from the outer chamber to the inner? How can this process be has tended? Calculate the purpose of the different chemical additions to outer chamber?
Determine what type of reactions take place in the inner chamber? Determine the advantage and disadvantage of photometry to calculate the ethanol?
Explain how will your calibration curve compare to that in Kaye's article? Is there a difference? Is there an advantage to plotting one of the ways?
In a dynamic track, explain why is the net kinetic energy greater before impact of two cars than after supposing law of conservation of energy to be valid?
He makes decision to take out the short-term loan to help with expenses until current house sells. If bank charges 9% simple annual interest, how much will David owe at maturity of the 90-day loan o
Calculate the probable reason Kaye plotted %Transmittance for the curve? Determine which would be more accurate titration of the photometry?
A solenoid is 10.0 cm long, consists of a radius of 0.500 cm and consists of 8000 equally spaced loops. Determine what angular frequency requires driving this inductor so that it consists of a react
A square coil whose sides are 5 cm on a side spins a magnetic field with strength 0.35 T. When the maximum emf generated is to be 5.2 V if the wire is spinning at 3300 rpm, determine the minimum num
A tennis ball on Mars, where the acceleration due to gravity is around 0.379 of a g and air resistance is negligible, is strike directly upward and returns to the similar level 6.20 s later. i) Det
Phosphorite is a mineral that is having 25% other non-phosphorus materials and 75% calcium phosphate. Calculate the mass of P4(s) can be formed from 1.0 Kg of phosphorite assuming an 80% yield of phos
A freight company employs a compressed spring to shoot packages of 2.0 kg up a 1.0m high frictionless ramp. The spring is compressed 30cm and consists of a spring constant of 500N/m. i) Determine th
How would you calculate the ionization energy for the electron in the higher energy state? What are your assumptions and what energy do you calculate?