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A ship travels 80 km due north on the first day of a voyage, 50 km northeast on the second day, and 90 km due east on the third day. Find the resultant displacement by the polygon method. Please show your work!
How fast is the mass moving at the top of its new path (directly above the peg)?
In one dimension, it is obvious that the force obeying Hook's law is conservative. Consider instead a spring that obeys Hook's law and has one end fixed at origin.
A person fishing from a pier observes that five wave crests pass by in 7.4 s and estimates the distance between two successive crests to be 4.3 m. The timing starts with the first crest and ends with the fifth. What is the speed of the wave? m/s
A 1.43 kg object is held 1.28 m above a relaxed, massless vertical spring with a force constant of 318 N/m. The object is dropped onto the spring. How far does the object compress the spring
An electron moves in a circular path perpendicular to a magnetic field of magnitude 0.230 T, find the speed of the electron and the radius of the circular path
The Pulse frequency of a person is 90 beats/min, Find the power of heart if the density of mercury is 13.6 X 10^3 kg/m^3 (g=10 m/s^2)
Juan and Pablo carry a load weighing 720 N on a pole between them. If the weight of the 120-N pole is considered, what force does each person support
In the Bohr model of the hydrogen atom the electron orbits the proton in a circular orbit. Calculate the orbital frequency of the electron
The temperature near the top of Saturn's cloud layer is about 110K. The temperature at the top of the earth's troposphere, Calculate the rms speed of hydrogen (H2) molecules in both of these environments
Upton Chuck is riding the Giant Drop at Great America. If Upton free falls for 2.6 seconds, what will be his final velocity and how far will he fall
0.110kg stone rests on a frictionless, horizontal surface. A bullet of mass 9.00g , traveling horizontally at 370m/s, Compute the magnitude of the velocity of the stone after it is struck
HCl has a dissociation energy of De = 7.41x10^-19 J and a harmonic vibrational frequency of 2900 cm-1. calculate the anharmonicity constant
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