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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)
At t = 0 a grinding wheel has an angular velocity of 27.0 rad/s. It has a constant angular acceleration of 32.0 rad/s2 until a circuit breaker trips at t = 2s. From then on, it turns by 432 rad as it coasts to a stop at constant angular accelerati..
What is the maximum speed with which a 1200 kg car can round a turn of radius 60.0m on a flat road if the coefficient of friction between tires and road is 0.65.
Landing on the Moon, a spacecraft fires its retrorockets and comes to a complete stop just 19m above the lunar surface. It then drops freely to surface.How long does it take to fall in seconds? What is its impact speed in meter per seconds.
What is magnitude of the speed of the boat relative to a stationary shore observer. A person stands at a point that is 4 m from one of the speakers and 4.4 m from the other. Does the person hear the tone? Explain.
A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r. how fast is the roller coaster traveling at the bottom of the dip
A 0.599 kg object is at rest at the origin of a coordinate system. A 3.76 N force in the positive x direction acts on the object for 2.46 s. What is the velocity at the end of this interval
Suppose a particle with mass m release from rest in a uniform gravity g. Suppose the drag force is proportional to speed square, find an expression that gives the relationship between velocity and time
Two particles moving under the influence of their mutual gravitational force describe circular orbits about one another with a period T. If they are suddenly stopped in their orbits and allowed to gravitate towards each other, show that they would..
An object with a mass of m = 5.3 kg is attached to the free end of a light string wrapped around a reel of radius R = 0.255 m and mass of M = 3.00 kg, Determine the speed with which the object hits the floor
A wave has angular frequency 140 rad/s and wavelength 1.60 m. Calculate the angular wave number
A child applies a torque of 1200 N*M to a merry go round. The rotational interia of the merry go round is 900 kg*m 2. What is the net torque acting on the merry go round
A copper ball with a radius of 1.5cm is heated until its diameter has increased by 0.17mm .Assuming an initial temperature of 21?C
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