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A truck can move up a road having a grade of 1.0-ft rise every 50-ft with a speed of 15 mi/h. The resisting force is equal to one twenty-fifth the weight of the truck. If its power output is the same, how fast will the same truck move down the hill? Assume that the resisting force remains unchanged.
You are designing a delivery ramp for crates containing exercise equipment. The crates of weight 1470N will move with speed 2.2m/s at the top of a ramp that slopes downward at an angle 25.0degrees.
A planet orbits a star, in a year of length 2.10 x 107 s, in a nearly circular orbit of radius 1.31 x 1011 m. With respect to the star, evaluate the tangential speed of the planet
why has patient confidentiality become a more difficult issue to deal with in the present health care
two points charges of 20.0 uc and -8.00 uc are separated by the distance of 20.0 cm. what is the magnitude of electric
A huge explosion is heard 26.2 miles away. How long does it take the sound to travel that far
A proton is accelerated from rest across a potential difference of 4V. What is the power delivered to the proton by the magnetic field
A rope is used to pull a 2.25 kg block at constant speed 7.47 m along a horizontal floor. The force on the block from the rope is 7.52 N, find the work done by the rope's force
An object of height 4.7 cm is placed 47 cm from a convex mirror of focal length having magnitude 39 cm. describe the properties of the image
a 900 hz sound wave is produced on the source side of the tube shown in the figure. the sound travels to the right
The position function x(t) of a particle moving along an x axis is x = 4.0 - 4.5t2, with x in meters and t in seconds. At what negative time does the particle pass through the origin
A lead sinker of mass 225 grams and density of 11.3 g/cm3 is attached to the bottom of a wooden block of mass 25 grams and density 0.5 g/cm3
Find the equivalent resistance of two resistors connected in parallel if one is 0.5 ohm and the other 0.33 ohm, what current will flow through the 10-ohm resistor
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