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A spring with a mass of 4 kg has natural length 0.5 m. A force of 25.6 N is required to maintain it stretched to a length of 0.7 m. If the spring is stretched to a length of 0.7 m and then released with initial velocity 0, find the position of the mass at any time.
A hydrogen atom has a single proton at its center and a single electron at a distance of approximately 0.0533 nm from the proton
A 1070-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960-N crate hangs from the far end of the beam.
A 22 nC charge is placed at the origin of an x-y coordinate system. A 16 nC charge is placed at coordinate (0, 8cm) and a -14 nC charge is at (-6cm, 0). What is the electric potential at coordinate (-6cm, 8cm)
An airplane starting from airport A flies 280 km east, then 365 km at 29.0° west of north, and then 130 km north to arrive finally at airport B.
A rope of length L = 5.2 m with a total mass of m = 0.205 kg is tied to a hook rigidly mounted into a wall. What is the height of the pulse that returns
A spacecraft is traveling with a velocity of v0x = 5675 m/salong the +x direction. Two engines are turned on for a time of 847 s. One engine gives the spacecraft an acceleration in the +x direction of ax = 1.25 m/s2,while the other gives it an acc..
question1a weight lifter pulls down on a bar associated to some weights via a pulley system. he rises in the air. a
An Earth satellite moves in a circular orbit 665 km above the Earth's surface. The period of the motion is 97.8 min. What is the magnitude of the centripetal acceleration of the satellite
A block is projected with a speed of 3.0m/s on a horizontal plane. compute how far does the block slide before coming to rest
Consider the H beta line of the Balmer series for hydrogen. Calculate the photon energy for this H beta line
The Moon is 3476 km in diameter and orbits the Earth at an average distance of 384,400 km. What is the angular size in radians of the Moon as seen from Earth
Two strings identical in length and made of the similar material are subjected to tensions in the proportion of 1 to 4; If they vibrate at the equal frequency, explain how do their diameters compare
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