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A 360g block hangs from a spring with k=5.19 N/m. At t=0s, the block is 18.4 cm below the equilibrium position and moving upward with a speed of 140 cm/s. What is the block's speed when the displacement from equilibrium is 19.7cm.
Alpha particles are accelerated through a potential difference of 1500 volts and then enter a magnetic field 0.4T perpendicular to their direction of motion. Calculate the radius of the circular path that they traverse. An alpha particle has mass 6.6..
The amplitude of an oscillator decreases to 68.7% of its initial value in 30.0s. What is the value of the time constant
What is the direction of the force that the unknown charge exerts on the charge of magnitude 0.580uC?
The block in the figure is initially at rest on an inclined plane at the equilibrium position that it would have if there were no friction between the block and the plane
Light at two different wavelengths, 750nm and 450nm, is shone through the same single slit at the same time. Determine the slit's width
find by dimensional analysis how the period t of a satellite orbiting a planet of mass m depends upon the gravitational
A student on a piano stool rotates freely with an angular speed of 3.30 rev/s. Calculate the initial and final kinetic energy of the system
what is the speed of the proton in the beam.define the spread in these values.
An astronaut on the planet Zircon tosses a rock horizontally with a speed of 6.95 . The rock falls through a vertical distance of 1.20 and lands a horizontal distance of 8.65 from the astronaut. What is the acceleration of gravity on Zircon?
A dog searching for a bone walks 2.20 m south, then 8.20 m at an angle 30.0° north of east, find the dog's resultant displacement vector
A model rocket is launched straight upward. Its altitude y as a function of time is given by y = bt -ct2, where b = 82 m/s, c = 4.9 m/s2, t is the time in seconds, and y is in meters, (a) make use of differentiation to find out a general expressio..
Tetchnetium is a radioactive isotope that emits a gamma ray with a half life of 6 hours. what fraction of the original dose remains in the body 24 hours after preparation
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