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A highway curve of radius 420 is designed for traffic moving at a speed of 100. What is the correct banking angle of the road?
A 1225 kg automobile starts from rest on a horizontal road and gains a speed of 83 km/h in 38 s. What is the average power required of the car during the 38 s interval
For the real or imaginary nucleus of 85X210, find the net electrical charge of the nucleus, the approximate radius of the nucleus, and the nuclear density
A man pushes a lawn mower on a level lawn with a force of 189 N. If 38% of this force is directed downward, how much time is spent in pushing the mower this distance
The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with acceleration of -5.20 m/s2 for 4.05 s, making straight skid marks 61.0 m long, all the way to the tree. With what speed does the car then s..
A laser emits a narrow beam of light. The radius of the beam is 9.6 mm, and the power is 1.9 mW. What is the intensity of the laser beam
If an object is projected upward with a velocity of 7.3 m/s at an angle of 25 degrees, how far in the horizontal direction did it travel
A parallel-plate capacitor has fixed charges q and -q. The seperation of the plates is then doubled. How much work must be done in doubling the plate seperation from d to 2d
Four particles, one at each of the four corners of a square with 3m-long edges, are connected by massless rods. The masses of the particles are m1 = m3 = 4kg and m2 = m4 = 5kg. Determine the moment of inertia of the system about the z axis.
A 22.5-kg rock is sliding on a rough, horizontal surface at 9.50 m/s and eventually stops due to friction. What average power is produced by friction as the rock stops
A certain type of laser emits light that has a frequency of 6.0 × 1014 Hz. How many wavelengths are there in one pulse
The total distance traveled by a point on the edge of a tire?
Water flows from a fire truck through a hose that is 10.7 cm in diameter and has a nozzle that is 2 cm in diameter. what is the gauge pressure in the truck
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