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A block is launched up a frictionless ramp that makes an angle of 35 degree to the horizontal. If the block's initial speed is 2.2 m/s, determine how far up the ramp does it slide (hint: use inclined plane downhill acceleration and equations of kinematics).
A child slides down a snow covered slope that makes an angle of 20 degrees with the horizontal. At what angle would the child slide with constant speed
Light from a He-Ne laser of wavelength 633 nm passes through a circular aperture. It is observed on a screen 4.0 m behind the aperture. compute the diameter of the hole
1 how long does it take a plane traveling at a constant speed of 160 ms to fly once around a circle whose radius is
A helicopter, starting from rest,accelerates straight up from the roof of a hospital. The liftingforce does work in raising the helicopter. An 810-kg helicopterrises from rest to a speed of 7.0 m/s in a time of 3.5s. Duringthis time it climbs to a..
A rotating bicycle wheel has an angular speed of 3 rad/s at T= 0. It is also given an angular acceleration of 1.5rad/s^2, What is the angular displacement during the first two seconds
Estimate the maximum centrifugal and coriolis forces that you would experience on a ferris wheel in Melbourne, FL. How does this compare with gravity?
The intensity of an earthquake wave passing through the Earth is measured to be 2.5×106 at a distance of 55 from the source. At what rate did energy pass through an area of 3.0 at 1.0
A horizontal spring is lying on a frictionless surface. One end of the spring is attaches to a wall while the other end is connected to a movable object. The spring and object are compressed by 0.078 m, released from rest, and subsequently oscillate ..
Point charges, Q1 = +46 nC and Q2 = -75 nC, are placed as shown. The work done by the external force is closest to
An electric toaster operating on 110.8 volts draws a current of 5 amperes. What is the resistance of the toaster
A uniform disk of mass M = 1.6 kg and radius R = 0.18 m rotates counterclockwise at a constant rate of 36 rev/s about its central axis. Determine the radial acceleration of a point on its rim
In the ground state of hydrogen, the uncertainty in theposition of the electron is roughly 0.10 nm. how fast is the electron moving
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