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An airplane has an efficient wing surface area of 15 m2 which is producing the lift force. In level flight the air speed over the top of the wings is 63.9 m/s, whereas the air speed below the wings
Water flowing out of the horizontal pipe emerges via a nozzle. The radius of pipe is 2.1 cm, and the radius of the nozzle is 0.47 cm. The speed of the water in the pipe is 0.67 m/s. Treat the water
Determine (i) the capacitance in pico farads, (ii) the magnitude of the charge in nano-coulombs on each plate, (iii) the stored energy in micro-joules, (iv) the electric field in N/C among the plate
For what values of x is y=tanx not stated? Find the range of tangent function? Compute range of cosine function? Define domain and range of secant function and draw its graph from -2pi to 2pi.
The vertical height between the vaccine's surface in the reservoir and the opening can be avoided. Determine the speed at which the vaccine emerges.
Water flows straight down from the open faucet. The cross-sectional area of the faucet is around 0.000170 m^2, and the speed of the water is 0.77 m/s as it leaves the faucet. Avoiding air resistance
A fuel pump sends gasoline from the car's fuel tank to the engine at a rate of 0.0574 kg/s. The density of gasoline is 735 kg/m3, and the radius of the fuel line is 0.00322 m. Determine the speed at
Assume that terminal point determined by t is point (-3/5, 4/5) on unit circle. Determine point determined by each of the following. A) pi+t B) 2pi-t
The object is solid throughout. If the object is fully submerged in ethyl alcohol, its apparent weight is 15.8 N. If fully submerged in water, its apparent weight is 13.8 N. Determine the volume of
Avoid the mass of the balloon and the air within it. Do not avoid the buoyant force applied on the shipping container by the water. The density of sea-water is 1025 kg/m^3.t
Avoid any height difference between the plunger and the piston. Determine the ratio of the radius of the plunger to the radius of piston?
Determine formula for P = f(n), number of infected people n years after 2010. Graph f(n). Describe, in terms of virus, why graph has shape it does.
Determine how many square meters of PV would it take to give 1 kW for a world population of 6 billion? When these cells were crystalline silicon of 200 microns thick (200*10^-6), determine the minim
A person who weighs 605 N is riding on a 98-N mountain bike. Assume that the whole weight of the rider and bike is supported uniformly by the two tires. When the gauge pressure in each tire is 89000
A commercially available solar cell module puts out 3Volts and 0.1 amp, and measures 5cm by 8cm. Determine how large an array is essential to give an output of 40 W?
Transform each of the given quadratic functions into form f(x)=a(x-h)^2+k and find out extreme point, x-intercepts, and sketch graph: a) f(x)= -x^2+10x-15 b) f(x)= 2x^2+2x+1.
Find out the smallest number of whole blocks (comprising the one on the ground) which can be stacked so that their weight makes a gauge pressure of at least two atmospheres on the ground below the f
The density of gold is 19 300 kg/m^3, and the density of quartz is 2660 kg/m^3. Determine the mass of the gold in the rock.
(i) What is the maximum weight W which can be supported in this way without pulling out the nail? (ii) Determine the magnitude of the force which the hinge applies on the pole?
When the solar cells have an efficiency of 10%, then what area of land is required to produce an output of 1000 MW? Suppose that the mean isolation is 500 W/m^2.
Two similar strings on different cellos are tuned to the 440Hz A note. The peg holding one of the strings slips, therefore its tension is reduced by 1.2%. Determine the beat frequency heard if the s
State the hydrostatic force against one side of the plate as an integral and calculate it. (Provide your answer correct to the near whole number in lbs.) Base is pointing up, parallel to the surface
The insurance policy pays 80% of first $20,000 of the certain patient's medical expenses, 60% of next $40,000, and 40% of $40,000 after that. If patient's total medical bill is $92,000, determine h
A space-craft of 90-tonne (1 t = 1000kg ) moving in the positive x-direction at 0.48 m/s docks with a 75-tonne craft moving in the negative x-direction at 0.80 m/s. i) Determine the velocity of the
A ball of 130g moving at 0.35 m/s in the positive x-direction is subjected to a 0.15 N force in the negative y-direction for 2.5 seconds. i) Determine the magnitude of the momentum change of the bal