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The radius of curvature of a highway exit is r = 95.5 m. The surface of the exit road is horizontal, not banked. (See figure.)
If the static friction between the tires and the surface of the road is μs = 0.408, then what is the maximum speed at which the car can exit the highway safely without sliding?
A small glass bead has been charged to + 10nC. A metal ball bearing 1.90cm above the bead feels a 1.20×10-2 N downward electric force. What is the charge on ball bearing.
A meterstick is at rest in an inertial frame S2. If S2 moves with a speed of 0.7c with respect to a rest frame S1, find the length of the meterstick as measured in frame S1 according to classical physics. Reply in units of m.
assume you have a perfectly isolated closed system under reversible and isothermal conditions where pv0.8 5000kjm-0.6.
a mixture of water density 1000 kgm3 and oil density 800 kgm3 is flowing through a tube of diameter 2 cm with a
A spacecraft power system generates electricity by absorbing heat from a nuclear reactor operating at 1000 deg C and expelling heat from a radiator operating at 300 deg C.
the generator at a power plant produces ac at 48000 v. a transformer step this up to 345000 v for transmission over
A long rope is stretched out horizontally among two students. The student on the left moves his hand up and down sinusoidal with a frequency of 2 Hz and an amplitude of 5 cm. The wave moves to the right with a speed of 10 m/s; and at time t = 0 the l..
The half-life of a muon is 2.2 s as measured in its rest frame. How fast must a beam of monoenergetic muons is travelling if half of them are observed to decay in 3.3 s
A cowboy at a dude ranch fills a horse trough that is 1.6 m long, 74 cm wide, and 42 cm deep. He uses a 2.2 cm diameter hose from which water emerges at 1.1 m/s . How long does it take him to fill the trough?
An 85 mH solenoid inductor is wound on a form 0.80 m in length and 0.10 m in diameter. At the given instant, the induced emf in the solenoid is closest to
To focus a camera on objects at dissimilar distances, the converging lens is moved toward or away from the image sensor, so a sharp image always falls on the sensor. A camera with a telephoto lens (f= 200.0mm) is to be focused on an object located fi..
A real object and its real inverted image are to be 1.5 m apart. There are two possible locations for the lens relative to the position of the object. What is the other possible location
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