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A 1.65 kg mass on a spring oscillates horizontal frictionless surface. The motion of the mass is described by the equation: x = 0.40cos(3.82t).
In the equation, x is measured in meters and t in seconds. What is the maximum energy stored in the spring during an oscillation?(in J)
An object with a mass of 72.0 g displaces 590.0 ml of water when it is completely immersed. What is the buoyant force on the mass?
The crankshaft in a race car goes from rest to 3540{\rm rpm} in 3.0{\rm s}. What is the crankshaft's angular acceleration
a wire lying in the plane of the page carries a current directed toward the bottom of the page. What path will the electron follow
A skateboarder shoots off a ramp with a velocity of 6.80m/s, directed at an angle of 59° above the horizontal. The end of the ramp is 1.10 m above the ground.
A horizontal bar of negligible weight has a 55.10 lb weight hanging from the left end and a 72.0 lb weight hanging from the right end. The bar is seen to balance 97.50 in from the left end. Find the length of bar.
Suppose a pion is traveling in the positive x-direction, and the magnetic field is in the positive z direction. Was the pion positively or negatively charged
One mole of an ideal gas at 27 °C is expanded isothermally from an initial pressure of 3 atm to a final pressure of 1 atm in two ways. (a) reversible, and (b) against a constant external pressure of 1 atm. find q, w, ΔU, ΔH, ΔSsys, ΔSsurr, ΔStotal..
The magnetic field perpendicular to a single 14cm diameter circular loop of copper wire decreases uniformly from 0.750 T to zero. If the wire is 2.25 mm in diameter, how much charge moves past a point in the coil throughout this operation.
The flywheel of an engine has a moment of inertia 3.00 {rm kg} cdot {rm m} ^ {2} about its rotation axis. What is its final kinetic energy.
Police determine skid marks 83 m long on the highway showing where the car made an emergency stop. Assume that the acceleration was -10 m/s2 (about the highest for dry pavement), how fast was the car going.
If that angular acceleration is 1.8rad/s^2, illustrate what is the total momentum of inertia about the axis of you and the chair?
Find the rotational frequency of the wheel.
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