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A 0.80-kg book moves verticallyupward a distance of 17 m, andthen vertically downward 17 m,returning to its initial position.
a) How much work is done by gravity during the upward motion of the book?b) How much work is done by gravity during the downward motion ofthe book?c) What is the total work done on the book by gravity during thecomplete round trip?d) On the basis of your answer to part (c), would you say that the gravitational force is conservative or nonconservative? Explain your answer.
Light visible to humans consists of electromagnetic waves with wavelengths (in air) in the range 400-700 nm (4.0 10-7 m to 7.0 10-7 m). find the frequencies of electromagnetic waves that are visible
A simple pendulum consists of a ball connected to one end of a thin brass wire. Determine the change in the period of the heated pendulum
A converging lens (f1 = 24.0 cm) is located 56.0 cm to the left of a diverging lens (f2 = -28.0 cm). How far is the object from the converging lens
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 19.0 m/s at an angle 48.0 degrees; How high above the ground will the ball be when it gets to Julie
A merry-go-round rotates at 5 rpm and is shaped like a disc with a radius of 3 m and a mass of 100kg. what will be the new rotational speed
At what angle must the cannon be fired
Over a time interval of 2.17 years, the velocity of a planet orbiting a distant star reverses direction, changing from +17.9 km/s to -18.0 km/s. find the total change in the planet's velocity
A child slides down a slide with a 26° incline, and at the bottom her speed is precisely half what it would have been if the slide had been frictionless. Calculate the coefficient of kinetic friction between the slide and the child.
A home (volume = 1000 m3) built in 1946 has urea formaldehyde insulation, which outgases into the home at a rate of 5 ng/hr, What is the steady state concentration (C) of formaldehyde in the home
A container is filled to a depth of 18.0 cm with water. What is the absolute pressure at the bottom of the container
If an inductor carrying a 1.40 A current stores an energy of 0.250 mJ, How much energy does the same inductor store if it carries a 2.9 A current
Two charged bodies separated by a distance d exert an electrical force on each other. The charge on one of the bodies is doubled. The electrical forces on each body now
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