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You're a consulting engineer specializing in athletic facilities, and you've been asked to help design the Olympic ski jump pictured in figure below. Skiers will leave the jump at 28 m/sand 9.5° below the horizontal, and land 55 m horizontally from the end of the jump. Your job is to specify the slope of the ground so skiers' trajectories make an angle of only 3.0°with the ground on landing, ensuring their safety.(Figure 1)
What slope do you specify?
Express your answer using two significant figures.
The balls have a glancing collision, not a head-on collision, deflecting the second ball by 90° and sending it north at 1.51 m/s. Illustrate what are the speed and direction of the first ball after the collision?
A 5.0 kilogram block is experiencing an applied 3.0 newton force in the positive x direction and is held stationary by an opposing frictional force, Determine the magnitude of the normal force
a 8.00 cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.510 t
You need a transformer that will draw 16 W of power from a 220 V (rms) power line, stepping the voltage down to 12 V (rms) What will be the current in the secondary coil? Express your answer to two significant figures and include the appropriate un..
An electron and a proton are each placed at rest in an electric field of 520 N/C. Calculate the speed (and indicate the direction) of each particle 50.0 ns after being released
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A converging lens forms an image of an object 25 cm to the right of the lens when an object is placed 18 cm to the left of the lens. What is the focal length of the lens
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a 8.0-m long wire with a mass of 10 g is under tension. a transverse wave for which the frequency is 570 hz the
A 12.5 cm tall soft drink can has a mass of 17.0 g and contains 364 g of soda when full. Where is its center of mass when half full
imagine a solar electric power plant that operates by using a gigantic mirror to concentrate light on the boiler for a
In CHEM122 we do an experiment where the charge of an electron may be determined. How many hours does it take for this plating
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