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A circular curve of highway is designed for traffic moving at 97 km/h. Assume the traffic consists of cars without negative lift. (a) If the radius of the curve is 140 m, what is the correct angle of banking of the road? (b) If the curve were not banked, what would be the minimum coefficient of friction between tires and road that would keep traffic from skidding out of the turn when traveling at 97 km/h?
Direction of the surface winds What is the expected composition
A tiny sphere with a charge of q = +6.0 µC is attached to a spring. Two other tiny charged spheres, each with a charge of ?4.0-µC, are placed in the positions, in which b = 3.8 cm. The spring stretches 5.0 cm from its previous equilibrium position..
What is amplitude of the electric component of the signal
Orb spiders make silk with a typical diameter of 0.15 .A typical large orb spider has a mass of 0.50 . If this spider suspends itself from a single 12-cm-long strand of silk, by how much will the silk stretch?
A physics demo launches a ball horizontally while dropping a second ball vertically at exactly the same time. [Delayed Feedback] 1) Which ball hits the ground first?
A 2.50g bullet, travelling at a speed of 395m/s, strikes the wooden block of a ballistic pendulum. The block has the mass of 265g. How high does the combination rise above its initial position.
Estimate the position of C.G or fulcrum & the masses of persons on a 16 feett sea saw, under balanced condition.
It is possible to produce artificial gravity on a space station by having the station rotate. Explain how this would work. What would be some benefits and drawbacks to this approach?
Estimate the current in an L-R circuit for t>T if the EMF is (12/T) t for 0
Presume a spherical planet P has a uniform density of 4.72 x 10^3 kg/m^3 and a radius R = 3604km. For a parcel that weighs 64N on the surface of the spherical Earth.
The distance between two telephone poles is 55.55 m. When a 1.00 kg bird lands on the telephone wire midway between the poles, the wire sags 0.165 m. illustrate a free-body diagram of the bird.
What is the total work done on the block by the applied force as the block moves a distance 10-m up the incline.
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