Determine speed of plane if car travels slower than plane
The plane can fly 800 miles in same time as it takes the car to go 250 miles. If car travels 110 mph slower than the plane, determine speed of plane.
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A converging lens having f = 11.9 cm is situated 30.6 cm to the left of a diverging lens of f = -5.94 cm. A postage stamp is positioned 32.4 cm to the left of the converging lens. Determine the on the whole magnification.
Determine the numbers of moles of NaOH must be added to the buffer to increase its pH to 5.74 when a buffer composed of 0.50 mol acetic acid and 0.50 mol sodium acetate is diluted to a volume of 1.0 L. The pH of the buffer is 4.74.
A charge of 5.3 is moving to the west having a velocity of 3 m/s. It enters a uniform magnetic field of 0.3T out of the screen. Determine the direction of the force which acts on the charge once it enters the field?
Calculate the pH of the solution at the equivalence point when a 20.00-mL sample of 0.220 M triethylamine,(CH3CH2)3N is titrated with 0.544MHCl(Kb(CH3CH2)3N= 5.2 × 10-4).
Discuss the composition of a brass alloy if 12.15g of the alloy reacts with HCl(aq) to yield 2.305 g ofZnCl2?
In your answers, denote the proportion of all U.S. high school students who happen to use computers for educational purposes by p.
A bullet of mass 41.0 g is shot horizontally to the stationary block of kauri of mass 2.30 kg that lies on a horizontal table with µk = 0.413. The bullet is then embedded a distance d = 6.50 cm into the block and the combined block-bullet ob
Suppose that the mean value of interpupillary distance (the distance between the pupils of the left and right eyes) for adult males is 65 mm and that the population standard deviation is 5 mm.
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