Determining the spring constant problem
A 1000 kg safe is held 2 m above a heavy duty spring when the rope holding it breaks. The safe compresses the spring 50 cm. What is the spring constant?
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What is the electric potential energy U of the pair of charges? (Take U to be zero when the charges have infinite separation.)
A small point charge having charge Q is fixed a distance h above a thin, infinitely long line of charge with charge density lambda. Determine the force on the point charge due to the line in terms of h, lambda, Q and fundamental constants. Assume
Need to determine the mass of Jupiter's moon Sinope: with the given formula M1 = a^3/P^2. Sinope's period of orbit is 2.075 years, and it average orbital distance is 0.158 AU, calculate Jupiter's mass in solar mass units.
There is a uniform magnetic field present, given by B=0.003 i + 0.004 j + 0.002 k, where i,j,k are the unit vectors along the cartesian coordinate axes in units of Tesla. Calculate the y-component of the magnetic force acting on a segment of wire
An electron starts from rest 5.00 cm from the center of a uniformly charged sphere of radius 4.00 cm. If the sphere carries a total charge of 1.00 multiplied by 10-9 C, how fast will the electron be moving when it reaches the surface of the sphere
In an alcohol-in-glass thermometer, the alcohol column has length 11.84 cm at 0.0 degrees C and length 22.87cm at 100.0 degrees C . What is the temperature if the column has length 16.00cm ? What is the temperature if the column has length 20.16 c
The system is released from rest. If there is no slipping between any of the surfaces, what is the acceleration of the board? Use conservation of energy.
When the bungee jumper is reaching the end of his cord, he begins to slow. While slowing down the direction of his velocity is up or down? How about the direction of his acceleration?
An image of the moon is focused onto a screen using a converging lens of focal length f= 36.8 cm. The diameter of the moon is 3.48×106m, and its mean distance from the earth is 3.85×108m. What is the diameter of the moon's image?
A converging lens forms an image of an 8.00-rnm-tall real object. The image is 12.0cm to the left of the lens, 3.40cm tall, and erect. What is the focal length of the lens? Where is the object located?
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