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A particle of mass 1.67×10-27 kg moves with a speed of 2.3×108 m/s relative to an observer. What is the kinetic energy of the particle in the rest frame of the observer?
what is the translational rms speed of carbon dioxide molecules.
A hydrogen atom is in its first excited state (n = 2). Using the Bohr theory of the atom, calculate (a) the radius of the orbit, (b) the linear momentum of the electron.
A police radar gun emits an electromagnetic wave at a frequency of fs = 1.08×1013 Hz. What is the speed of the oncoming car (v)
A block weighing 15.0 N rests on the floor. What force does the floor exert on the block
An electron starts from rest 5.00 cm from the center of a uniformly charged sphere of radius 4.00 cm. If the sphere carries a total charge of 1.00 x10-9 C, how fast would the electron be moving when it reaches the surface of the sphere.
A 80.0cm3 box contains helium at a pressure of 2.30atm and a temperature of 90.0?C. What is the final pressure in each box
A playground merry-go-round (uniform disk with mass M=150kg and radius R=2m) rotates on a frictionless axle through its center. What is the kinetic energy of the child-merry-go-round-system
A wheel experiences a time dependant angular acceleration given by ?(t) = 3 + 0.333t^3. Derive an expression for the angular velocity as a function of time
A very light rigid rod with a length of 0.500 m extends straight out from one end of a meter stick. Determine the period of oscillation
A boy in a moving bus at +6 m/s observes a car moving at -3 m/s. What is the actual velocity of the car with respect to the bus?
A professional race-car driver buys a car that can accelerate at 5.3 m/s2. Find the velocity of the race car when the two drivers are side by side
A puck slides across a smooth, level tabletop at height H at a constant speed vo. It slides off the edge of the table and hits the floor a distance x away as shown in the figure. What is the algebraic relationship between the distances x and H?
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