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Solve the all parts of given question:
Question: On a planet in a solar system far from ours, you release a rock from rest at a height of 16 m above the surface of the planet and you find that it takes the rock 3 seconds to reach the surface. Air resistance can be neglected. The mass of the planet is 8 x 1025 kg.
Question I: What is the radius of the planet?
Please show all work and clearly explain. Thank you.
In a photoelectric experiment, light with a wavelength of 250 nm hits a certain material. When a negative potential of 0.48 volt is applied there is no more current while a saturation current Is is recorded at positive voltages.
Consider a long wire that makes a right angle (90°) bend. If the wire carries a current I, what is the magnetic field at point A
A standing wave on a string that is fixed at both ends has frequency 80.0 Hz. What is the speed of the waves on the string
People who do chin-ups raise their chin just over a bar (the chinning bar), supporting themselves only by their arms. Find the force his arms must exert on him during the accelerating part of the chin-up
A uniform diving board, of length 5.21 m and mass 50.4 kg, is supported at two points; one support is located L1 = 3.32 m from the end of the board and the second is at 4.89 m from the end. What is the force acting on the board due to the right sup..
A spinning flywheel has rotational inertia I = 417 kg·m2. Its angular velocity decreases from 19.5 rad/s to zero in 320 s due to friction. What is the frictional torque acting? Take positive to be "with the flywheel's rotation", and negative to be "o..
solar cells are often coated with a transparent thin film of silicon monoxide sio n 1.45 to minimize re?ective losses
A toy of mass 0.155 kg is undergoing SHM on the end of a horizontal spring with forces constant 305 N/m. When object is a distance 1.20×10-2 m from its equilibrium position, it is observed to have the speed of 0.255 m/s.
The antenna on a cordless phone radiates microwaves at a frequencyof 5.0 GHz. What is the maximum length of the antenna if it is not to exceed half of a wavelength
shows a particle with positive charge q = 1.60 x 10-19 C is moving with speed v = 8.43 x 104 m/s toward a long straight wire with current i = 371 mA. find the magnitude of the force on the particle due to the current
A small wooden block with mass 0.875kg is suspended from the lower end of a light cord that is 1.80m long. What was the initial speed v0 of the bullet
In a physics lab, a cube slides down a frictionless incline and elastically strikes another cube at the bottom that is only 1/10 it's mass. determine where does each cube land
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