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consider an object of mass 0.1 kg oscilaating on a spring with an x- component of position given by x = (2m) cos ((5/s)t - pi/6)
a) find the x-component of velocity as a function of time.
b) find the spring constant of the spring.
c) find the total energy of the mass/ spring system.
d) find the maximum speed of the block.
Using the Bohr model, calculate the speed of the electron in a hydrogen atom in the n=1,2, and 3 levels. Calculate the orbital period in each of these levels
A binary star system consists of two equal mass stars that revolve in circular orbits about there center of mass. What is the mass (kg) of each star
suppose that the displacement of your hand is 0.70 m as you throw the ball straight up. How long is the ball is in your hand.
A curling stone with a mass of 7.00 kg moves across the ice at a speed of 1.35 m/s in the positive x direction. What is the initial kinetic energy
A cosmic-ray proton in interstellar space has an energy of 21.5 MeV, What is the magnetic field in that region of space
Two persons start at the same place but walk around a circular lake in opposite directions. Their angular speeds are 1.90 x 10-3 rad/s and 3.10 x 10-3 rad/s, respectively. How much time elapses before they meet
A 3 kg block slides along a frictionless surface at 1.0 m/s. A second block, sliding at a faster 5.0 m/s, What is the mass of the second block
When 3825 J of heat are added to a 0.14-m-long silver bar, its length increases by 4.59 10-3 m. What is the mass of the bar
The escape velocity of a bullet from the surface of planet Y is 1951 m/s. Calculate the escape velocity from the surface of planet X
What is the speed of the 2 cars as they move together after the collision.
A microwave radio transmitter emits electromagnetic waves of a single wavelength. What is the power of the transmitter
As a freely falling object picks up downward speed, what happens to the power supplied by the gravitational force? Does it increase, decrease, or stay the same and Why.
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