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A 34.1 kg child rides a Ferris wheel whose diameter is 18.3 m. When the ride is turning at a constant rate, the child's speed has a constant value of 4.23 m/s. Find the normal force the seat exerts on the child at:
a) The top of the ride
b) The bottom of the ride.
You plan to project an inverted image 30.0 cm to the right of an object. You have a diverging lens with focal length -4.00 cm located 6.20 cm to the right of the object. What is the focal length of the second lens
If he struck a ball with the a speed and launch angle that would result in a maximum 120m horizontal range on Earth, how far would it go?
A 9.0 cm-diameter disk emits light uniformly from its surface. 20 cm from this disk, along its axis, is an 7.0 cm-diameter opaque black disk; the faces of the two disks are parallel. 20 cm beyond the black disk is a white viewing screen. The light..
A prescription for a corrective lens calls for +1.50D. The lensmaker grinds the lens from a "blank" with n = 1.56 and a preformed convex front surface of radius of curvature of 40.0 cm. What should be the radius of curvature of the other surface?
a 26.5 kg boy slides down a steep slide at a water park that is 10.9 m long and angled 75 degrees above the ground. what is the magnitude of the boys acceleration as he travels down the slide
A tungsten wire is 1.50m long and has a diameter of 1.00 mm. At 20 degrees celsius a current of 50mA flows through the wire. Determine the potential across the wire
Many of the elements in horizontal-bar exercises can be modeled by representing the gymnast by four segments consisting of arms, torso (including the head), thighs, and lower legs, as shown in figure (b).
A 2.8{\rm kg} block of wood sits on a table. A 3.0 {\rm g} bullet, fired horizontally at a speed of 370{\rm m/s} , What is the speed of the block immediately after the bullet exits
a 30 kg child on a sled slides down a frictionless slope angled at 15 degrees with respect to the horizontal. what is the magnitude of the wind force, F, such that the acceleration of the child is 1 m/s^2
What is the root-mean-square speed of chlorine gas molecules at a temperature of 320 K? (R = 8.31 J/mol×K, NA = 6.02 ¥ 1023, and the molecular mass of Cl2 = 71)
A 3.8kg block of wood sits on a table. A 3.0 g bullet, fired horizontally at a speed of 450m/s , What is the speed of the block immediately after the bullet exits
An ice skater with mass of 50 kg pushes off from the wall of an ice rink. How much work is done on the skater by the wall
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