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A section of a high speed test track is circular with a radius of curvature R = 1280 m.
At what angle of θ should the track be inclined so that a car traveling at 71.0 m/s (159 mph) would keep moving in a circle if there is oil on that section of the track, i.e., it would not slip sideways even with zero friction on that section. (Hint: The car's vertical acceleration is zero.)
A body is thrown straight up from ground level with an initial velocity of 100 m/s. How high did it go before falling back to earth
A storage tank 28 m high is filled with gasoline. (Assume the tank is open and exposed to the atmosphere at the top.)(a) Find the gauge pressure at the bottom of the tank.
The dummy in a crash test has a head of mass 3 kg. The dummy is strapped in firmly so that the body does not move. The car's forward speed changes from 24 m/s to zero in 0.23 s.
The specific heat of ethanol is 2.44 J/g·°C. How various kilojoules of energy are required to heat 50.0 g of ethanol from -20.0°C to 68.0°C.How far last car travel before momentarily coming to rest.
What is the maximum distance along the ladder a person of mass 15M can climb before the ladder starts to slip?
A box slides down a rough, 25 Degree incline with a coefficient of kinetic friction between the box and incline of 0.7. What will be its speed at the bottom
How to interpret graph 1/object distance (U) vs 1/image distance (V)... What type of graph is this? and what does it represent? What does the straight line represent?
Two Earth Satellites, C and D each of mass m=950 kilogram are launched into circular orbit around the Earths center. Determine the potential energies of the two satellites
A 451-? resistor and a 257-mH inductor are connected in series with an ac generator with an rms voltage of 20.0 V and a frequency of 60.0 Hz
There is a straight plastic rod that is parallel to the y axis with length L and total charge Q.Point P is placed on the x axis half way down the rod
A string on a violin is stretched between two points 20.0 cm apart with a tension of 120 N. The total length of the string is 31 cm and it has a mass of 0.62 grams. The frequency of the third harmonic is?
The rope of a swing is 3.2 meter long. Find the angle from the vertical at which a 77 kilogram man must begin to swing in order to have the same kinetic energy at the bottom as a1460 kilogram car moving at 1.55 m/s
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