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Inspector Carol Ketchum is in pursuit of a Midnight Chemical truck that has spread waste solvents, mostly cis-1,2-dichloroethene, in a uniform layer 2 mm thick on the roadway. She arrives 20 min after the truck has finished emptying its load. Is she in time to collect any evidence from the road? Assume wind speed is 3 m/sec.
An ambulance is generating a siren sound at a frequency of 2400 Hz. The velocity of sound is 34.0 m/s. What is the frequency of the siren perceived by the observer
A 68.0-O resistor is connected in series with a 76.0-µF capacitor and a generator having a maximum voltage of 1.20 102 V and operating at 60.0 Hz
A 4 kg model rocket is launched, expelling 40.00 g of burned fuel from its exhaust at a speed of 550m/s. What is the velocity of the rocket after fuel has burned? Hint: Ignore the external forces of gravity and air resistance.
A high-voltage transmission line with the resistance of 0.30 /km carries a current of 950 A. The line is at a potential of 710 kV at the power station and carries the current to a city located 161 km from the station.
Suppose you have a near-point distance of 16 cm. The angular resolution of the eye is determined by diffraction, What is the smallest object your bare eye can resolve
what is the magnitude of the first 2nd and 3rd wire i 5.4a b 3.06cm l 32.2 cm. there is three wires label 123 and b is
Two equal point charges (q = +4.50 x 10-6 C) are fixed at opposite corners of a square whose sides have a length of 0.390 meter. Find the speed of the test charge when it reaches the center of square
If a curve with a radius of 60m is properly banked for a car traveling 60km/h what must the coefficient of friction before a car on the same curve traveling 90km/hr
A ball of mass .350kg is swung at the end of a 2.40m string such that the plane of its path is horizontal and the circle it moves in has a radius of 1.40m. Discover the tension in the string and the angle at which the string makes with the vertical.
A long horizontal wire with linear mass density λ = 47.5×10−3 kg/m carries acurrent of 0.534 A. The wire is situated so that it is perpendicular to a uniform, horizontal magnetic field that is juststrong enough to levitate the wire against its weight..
Consider a refrigerator that consumes 320 W of electric power when it is running. Find the electricity cost of the refrigerator over a 30 day month
A 20 g bullet traveling at 300 m/s is shot into a 4.0 kg block at rest on a frictionless horizontal surface. What is the speed of the block right after shooting
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