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In the Mass-Spring virtual lab at (open the link in a new browser window to prevent your quiz from locking out) https://phet.colorado.edu/new/simulations/sims.php?sim=Masses_and_Springs, set the friction to zero and select planet Earth. Now, if you attach a mass to the spring from its initial equilibrium position, it vibrates forever in simple harmonic motion. Why doesn't it come to rest after stretching by a distance 'd'; proportional to the weight of the mass, when the spring's restoring force cancels out the weight of the mass? How will you measure the equilibrium position? How can you attach the mass to the spring so that it doesn't oscillate when you let go?
A hydrogen atom is in a d state. In the absence of an external magnetic field the states with different m, values have (approximately) the same energy. Consider the interaction of the magnetic field with the atom's orbital magnetic dipole moment. ..
The ion then enters another region II with the same velocity it attained in region I. Find the radius of its path. The magnetic field in region II is 10T
A 1500 kg car traveling at 90 km/h east collides with a 3000 kg cartraveling at 60 km/h south. What is the direction of motion of the cars after collision
Water flowing in a 1-in. KD pipe is suddenly expanded to a 9-in. ID pipe by means of an expanding conical section similar to a nozzle (here, a diffuser),.
This cart rolls at 4 m/s toward a stationary 1kilogram cart. Evaluate the speed of each cart after the collision
The hydrogen ion concentration,[H+], in a certain cleaning compound is [H+]=3.6*10^-12. Use the formula pH=-log[H+] to find the pH of the cleaning compound. Round to the nearest tenth.
A 91.6-kg astronaut and a 1180-kg satellite are at rest relative to the space shuttle. find the initial distance from the shuttle to the astronaut
a guitar string is tuned to an e4 that is the standard tune for the thinnest string on a guitar. if the scale length is
Which is larger for a uniform disk of mass M and radius R that is rolling without slipping: its translational or its rotational kinetic energy? A. It's translational kinetic energy B. It's rotational kinetic energy C. Both are the same D. Question ca..
A particle travels 18 times around a 11-cm radius circle in 45 seconds. What is the average speed (in m/s) of the particle
A 200g block is released from rest at a height of 25 cm on a frictionless 30 degree incline. It slides down the incline and then along a frictionless surface until it collides elastically by an 800 g block at rest 1.4 m from the bottom of the incline..
A 100 kg crate is being pushed across the horizontal floor by a force that makes an angle of 30.0° below the horizontal. The coefficient of kinetic friction is 0.230. What must be the magnitude of, so that the net work completed by it and the kinetic..
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