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An ideal massless spring is hanging vertically. When an unknown mass is attached to the spring, the spring stretches by 3.9 cm before reaching a new equilibrium. Then the mass is displaced by 2.7 cm from the new equlibrium. What is the frequency of the resulting oscillation?
First work out the momentum before and after hitting the table. Don't forget the gravitational force.
While a person is walking, his arms swing through approximately a 45.0 degree angle in 0.420s, What is the acceleration of a 0.900 gram drop of blood in the fingertips at the bottom of the swing
Find the gravitational attraction between two solid lead spheres of 1 kg mass each if the spheres are almost in contact
A steel cable with total length 30 m and mass 100 kg is connected to two poles. Calculate the wavelength of the resulting wave on the cable
Shamu weighs 10000 lbs. on earth. What is Shamu's mass (in kg) on Earth, What is shamu's mass (in kg) on the moon
Larry is standing at the edge of a vertical cliff 210m about the sea. how far has the rock traveled horizontally when it hits the water
suppose that a projectile which is subject to a linear resistive force is thrown down with a speed of Vyo which is greater than the terminal speed Vterm. Describe and explain how the velocity varies with time, and make a plot of Vy against t for t..
A train is travelling up a 3.2 degree incline at a speed of 3.55 m/s as the last car breaks free and begins to coast. How long does it take for the last car to come to rest.
Calculate the thermal de Broglie wavelengths for helium-4 (boson) and helium-3 (fermion) gases at T = 5K
The hunter uses a small powerboat that moves at a maximum speed of 14 km/h with respect to the water. Illustrate what is the minimum time necessary for crossing?
An infinitely long line of charge has linear charge density 5.00 x10-12 C/m. A proton (mass 1.67 x10-27 kg, charge +1.60 x10-19 C) is 18 cm from the line and moving directly toward the line at 1.50 x103 m/s. How close does the proton get to the li..
A golfer hits a shot to a green that is elevated 3 m above the point where the ball is struck, find the speed of the ball just before it lands
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