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The barricade at the end of subway line has a large spring designed to compress 2.00 m when stopping a 1.00 x 10^5 kg train moving at 0,500 m/s. What speed would the train be going if it only compressed the spring 0.500 m?
Write an equation for a wave with a frequency of 2Hz, a wavelength of 30 m, and an amplitude of 75 cm
State Newton's three laws of Motion and What is the difference between elastic collision and inelastic collision
When monochromatic light shines perpendicularly on a soap film (n = 1.33) with air on each side, What is the vacuum wavelength of the light in nm
If the car is now at rest and the pendulum undergoes S.H.M. would its time be shorter of longer than that calculated in (b) explain your answer.
Apollo 11 (total mass 43,100 kg) was in an orbit 11 km above the surface of the moon. What was the speed of Apollo 11 while it was orbiting the moon
Find out the speed of the satellite
A single slit has a width of 2.1x10^(-6)m and is used to form the diffraction pattern. Find out the angle that locates the second second dark fringe when the wavelength of the light is 430 nm.
An alpha particle (the nucleus of a helium atom) consists of two protons and two neutrons. what is the strength of the magnetic field
The space shuttle releases a satellite into a circular orbit 700 km above the Earth, How fast must the shuttle be moving (relative to Earth's center) when the release occurs
The density of water in Earth's hydrosphere and the density of rocks in the crust are both lower than the average density of the planet as a whole
Two large metal plates of area 0.5 m2 face each other. They are 4.8 cm apart and have equal but opposite charges on their inner surfaces. what is the magnitude of the charge on each plate
Consider the glass prism in the figure below, for which ? = 22° and ? = 68°. What is the smallest angle ?1 for which a laser beam will undergo total internal reflection
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