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A book of mass 5.2 kg is resting on a flat level table. You push down on the book at an angle of 25.0 degrees from the horizontal with force of magnitude 236 N. The book starts to slip and is sliding across the table. What is the magnitude of the force of kinetic friction from the table on the book? The coefficient of kinetic friction between the table and the book is μk = 0.43.
compute the magnetic field of a torso with 60 turns if the current in each turn has a magnitude of i0.2a at a distance
A baseball (m = 138 g) approaches a bat horizontally at a speed of 38.6 m/s (86 mi/h) and is hit straight back at a speed of 45.5 m/s (102 mi/h). what is the average force exerted on the ball by the bat
Treat the ball as a uniform, solid sphere, ignoring the finger holes. Illustrate what is the acceleration of the center of mass of the ball?
A neighborhood transformer on the top of a utility pole transforms 15.0kV 60.0 Hz alternating voltage down to 120.0V to be used inside a house. how many turns does the primary coil have
An ideal step-downtransformer has a primary coil of 380 turns and a secondary coil of20 turns. Its primary coil is plugged into an outlet with 115V(AC), from which it draws an rms current of 0.71 A.
what would be the total area of solar cells necessary to meet these power demands including nighttime consumption and
A "swing" ride at a carnival consists of chairs that are swung in a circle by 12.0 m cables attached to a vertical rotating pole, as the drawing shows. Determine the tension in the cable attached to the chair
Two soccer players, Mia and Alice, are running as Alice passes the ball to Mia. What is the magnitude and direction of the velocity of the ball relative to the ground
Hello Since a prop-airplane can remain in horizontal flight indefinitely, why then, in the air shows, when the airplane is pointing vertically upward
questionone end of a spring is attached to ceiling and it is hanging straight down with a relaxed length l0. it has a
A circumpolar star has an altitude over the horizon of 4 degrees 12' at west-to-east transit and 51 d 30' at east-to-west transit, What is the latitude of the observer
A scale sits atop a desk. On the scale is a cylindricalcontainer (mass 100g) filled with 200cm3 (200g) of water. How many grams does the scale read
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