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The height of a tower is measured with attaching a simple pendulum to its ceiling, whose length is barely enough to stay off the floor. The pendulum is let go from a small angle, and takes12 s to return to the similar location it started from. The tower is 35.75 m tall = L. If the pendulum mass is let go 0.3 m above the floor,
How fast is the mass travelling as it grazes the floor? ______m/s
A rocket takes off vertically from the launchpad with no initial velocity but a constant upward acceleration of 2.25 m/s2. What is the maximum height the rocket will reach above the launchpad
An automobile suspension involves both leaf springs with stiffness k and shock absorbers resist motion with a force -uv. The system is critically damped. If a car has mass 2000 kg and has shock absorbers with u = 2.5 x10^4 kg/s, how much should the c..
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. calculate the radius of a chamber
performing an experiment similar to millikans oil drop experiment a student measures these charge magnitudes.3.26
a person sees clearly wearing eyeglasses that have a power of -5.00 diopters when the lenses are 1.65 cm in front of
Mercury has a mass of 3.30 1023 kg and a radius of 2.44 106 m. Assume it is a uniform solid sphere. What is the rotational kinetic energy of Mercury on its axis
Another particle, of mass 7.4 10-27 kg, moves along the positive x-axis with a speed of 4.0 106 m/s. (Assume that mass is conserved.) Evaluate the third particle's speed. What is the direction of motion?
A bowling ball of mass 6.50 kilogram and radius 9.82 centimeter rolls without slipping down a lane at 3.32 m/s. determine its total kinetic energy
The pressure-volume graph shows an engine cycle where the working substance is an ideal monatomic gas (? = 5/3). The process A-B is adiabatic. calculate the heat removed from the gas
A block of mass 1.4 kg is moving up a 40 degree inclined plane at a speed of 2 m/s. how far up the plane will the block go before stopping
while in a third floor office building you notice a ball moving straight upward just outside the window. it takes 0.14
A 120-V fish tank heater has a power rating of 112 W. Calculate the resistance of the heater and Calculate the current through the heater
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