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A 0.20kg object is attached to a spring with spring constant k=10n/m and moves with a simple harmonic motion over a horizontal frictionless surface. At the instant it is displaced from equilibrium by -0.050m, what is it's acceleration.
A wire carries a current of 0.616 A. This wire makes an angle of 56.7° with respect to a magnetic field of magnitude 4.63E-5 T. The wire experiences a magnetic force of magnitude 7.17E-5 N. What is the length of the wire?
The force diagram shown describes the forces acting on the back while bending at the waist in static equilibrium the trunk makes a 60 degree angle with the vertical. hat is the torque equation about point A
A massless spring is compressed between blocks of mass x and 5x on a smooth horizontal frictionless surface. What fraction of the total energy does the small block recieve
Calculate the gradient of V in each region
A mini-fridge needs to maintain a temperature of 277 K. The air outside the mini-fridge has a temperature of 292 K. What is the power output (that is, the work done per second) of the compressor in the mini-fridge
A transverse wave on a string is described by the following wave function. y = 0.105 sin [(?/12)x + 5?t] where x and y are in meters and t is in seconds. (a) Determine the transverse speed at t = 0.290 s for an element of the string located at x = 1...
A hydrogen atom is in its second excited state, n=3. Find the total energy of the atom
A small steel ball with a mass of 80 g is releasesd from a resting height of 1.25 m above a ridgid metal plate. What is the velocity of ball before impact.
A 70 cm long, 0.8 mm diameter steel guitar string must be tightened to a tension of 2000 N by turning the tuning screws. By how much is the string stretched
question1a cargo plane is flying horizontally at a height of 10.2 km with a speed of 970 kmh when a large crate falls
A 4.0 kg mass is hung from a string which is wrapped around a cylindrical pulley (a cylindrical shell), what is the mass of the pulley
On a cold day, 25000 J of heat leaks out of a house. The inside temperature is 22 °C, What is the increase in the entropy of the universe that this heat loss produces
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