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A 0.46 kg block slides across a tabletop with initial velocity of 3.1 m/s and it comes to rest in a distance of 0.58 m. Find the average friction force that retarded its motion.
The lowest note on a grand piano has a frequency of 27.5 Hz. The entire string is 2.00 m long, What tension is needed to tune this string properly
An 1150-kg car pulls a 450-kg trailer. The car exerts a horizontal force of 3,800 N against the ground in order to accelerate. What force does the car exert on the trailer? Assume an effective friction coefficient of 0.15 for the trailer.
What is the current in amperes in a wire of radius. The parallel plates in a capacitor, with a plate area of 8.70 cm2 and an air-filled separation of 3.30 mm, are charged by a 8.90 V battery.
A coil that is circular has a radius of 8 cm and has 400 turns it is on a table horizontally, What is the total EMF in the coil as a function of time and in which direction does the current flow
How many electrons would have to be added to one of these spheres to make it electrically neutral?
The speed of a transverse wave on a string is 440 m/s, and the wavelength is 0.13 m. The amplitude of the wave is 1.6 mm. How much time is required for a particle of the string to move through a total distance of 1.0 km?
What is Kepler's First Law and in this experiment, there are eight pairs of photographs. In each pair, what things are the same in each? What things are different?
A 61.0 kg skier encounters a dip in the snow's surface that has a circular cross section with a radius of curvature of 12.0 m .If the skier's speed at point A is 7.50 m/s (before entering dip), what is the normal force exerted by the snow on the skie..
A ranger in a national park is driving at 24.0 mi/h when a deer jumps into the road 270 ft ahead of the vehicle. After a reaction time of t, ranger applies the brakes to produce an acceleration of a = -9.00 ft/s2. What is the greatest reaction tim..
A 196.3 kg satellite is in a circular orbit of 26,273 miles (42,300,000 m) in radius. The force keeping the satellite in orbit is 40.1 N
consider a metal rod, length = .30m, cross sectional area=0.0010m^2, temperature difference between the ends is 65*C. What is the thermal conductivity of the metal
A concave makeup mirror is designed so that a person 26 cm in front of it sees an upright image magnified by a factor of two
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