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Question: Cesium atoms are the largest naturally occurring atoms. The radius of a Cs atom is 2.62 angstroms. How many Cs atoms would have to be laid side by side to give a row of Cs atoms 1 inch long? (assume the atoms are spherical)
A source emits sound of wavelength 2.54m an 2.74m in air. Use the speed of sound=343m/s. a) Write the equations of these two traveling waves in complex exponential notation as a function of wave speed and number.
An object moves uniformly around a circular path of radius 20.5 cm, making one complete revolution every 2.40 s. What is the translational speed of the object
What is the magnitude and direction of the force on an electrontraveling 8.5 x 105 m/s in the + x direction caused by amagnetic field of 0.5 T in the + y direction?
a 90kg box is pushed by a horizontal force F at a constant speed up a ramp inclined at 28 degrees. Determine the magnitude of the applied force
A mass m is connected to the bottom of a vertical spring whose force constant is k. Attached to the bottom of themass is a string that is connected to a second mass m, asshown in the figure . Both masses are undergoing simple harmonicvertical moti..
A 2kg block is pushed with a horizontal force (not parallel to the incline) of 40N at a constant speed for 5m along an inclined plane of 37 degrees. What is the value of the the coefficient of kinetic friction?
What's the definition of quantum physics, in layman's terms?
A rock is thrown from the roof of a building with a velocity vo and an angle of alpha(o) from the horizontal, Calculate the magnitude of the velocity of the rock just before it strikes the ground
A system receives 107 joules in the form of heat energy in a specified process and it produces work of 4*10^6 joules. The system velocity changes from 10km/s to 25 km/s and its elevation changes from 20m to 12m. The mass of the system is 50 kg. Deter..
A 2500-kg sport utility vehicle travelling at 92 km/h can be stopped in 0.25 s if it hits a concrete wall. Assume a 60 kg person was in the car that hit this wall. The velocity of the person equals that of the car both before and after the crash, and..
After falling from rest from a height of 29 m, a 0.49-kg ball rebounds upward, reaching a height of 19 m. find average force was exerted on the ball
A state highway patrol car radar unit uses a frequency of 8.00×10^9Hz. What frequency difference will the unit detect from a car receding at the speed of 44.50 from a stationary patrol car.
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