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A billiard ball of mass 163 g and radius 3.0 cm starts with a translational speed of 2 m/s at point A on the track as shown in the figure below. If point B is at the top of a hill that has a radius of curvature of 79 cm, what is the normal force acting on the ball at point B? Assume the billiard ball rolls without slipping on the track.
A H2 molecule can be approximated by a simple harmonic oscillator having a spring constant k = 1.1 ? 103 N/m. How many different energy transitions are possible when the H2 molecule decays from the third excited state down to the ground state?
A flashlight on the bottom of a 3.70 m deep swimming pool sends a ray upward at an angle, What angle (in air) does the emerging ray make with the water's surface
A mass spectrometer,sketched below, is a device used to separate different ions. Suchions with a well-defined velocity vo enter through aslit into a region of uniform magnetic field B, where they follow asemicircular path until they strike the detec..
For a science fair competition, a group of high school students build a kicker-machine that can launch a golf ball from the origin with a velocity of 11.3 m/s, How high will be the highest point of trajectory
A 7.0-kg object is attached to one end of a horizontal spring that has a negligible mass and a spring constant of 300 N/m. The other end of the spring is fixed to a wall. The spring is compressed by 10 cm from its equilibrium position and released fr..
A bicycle tire whose volume is 4.1 x 10-4 m3 has a temperature of 283 K and an absolute pressure of 3.31 x 105 Pa. How many moles of air must be pumped into the tire
One of the loudest sounds in recent history was that made by the explosion of Krakatoa on 26-27 August 1883. compute the decibel level on Rodriguez Island
Calculate the length of a pipe that has a fundamental frequency of 694 Hz. (Take the speed of sound in air to be 343 m/s.)
In a mall, a shopper rides up an escalator between floors. At the top of the escalator, the shopper turns right and walks 10.1 m to a store. At what angle is the escalator inclined above the horizontal
Green light at 543 nm is diffracted by a grating with 3000 lines per cm. Through what angle is the light diffracted in the first order
You have a 0.421-kg sample of gas containing 1.99 moles. Calculate the rms, average, and most probable speeds of the gas\'s molecules
A large punch bowl holds 3.95 kg of lemonade (which is essentially water) at 20.0° C. A 0.42-kg ice cube at 10.2° C is placed in the lemonade. What is the final temperature of the system and the amount of ice (if any) remaining? Ignore any heat excha..
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