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For the system shown , the block has a mass of 1.5 kg and the spring constant k=8.0 N/m . suppose that the block is pulled down a distance of 12 cm and released .if the friction force is given by - bv, where b=0.23 kg /s , find the number of oscillations made by the block during the time interval required for the amplitude to fall to one-third of its initial value.
The density of ice is 917 kg/m3 and the density of sea water is 1025 kg/m3. A swimming polar bear climbs onto a piece of floating ice that has a volume of 5.2m3. What is weight of the heaviest bear that the ice can support without sinking complete..
A generator connected to an RLC circuit has an rms voltage of 140 volts and an rms current of 33 mega-amps. what is the inductive reactance of the circuit
In a car collision, the driver's body must change speed from a high value to zero. This is true whether or not an airbag is used, How does it reduce injury
A rock thrown horizontally from the top of a radio tower lands 22.0 m from the base of the tower. how high is the tower
A light rod L has a ball with mass m attached to its end, forming a simple pendulum. It is inverted so that the rod is straight up and then released. What are a) Its speed at the lowest point b) The tension in the suspension at that instant?
Two heavy pendula of mass m are suspended from strings of length l inside a railroad car of mass M that can roll freely on horizontal tracks (ignore the moment of inertia of the wheels).
A 10.0g plastic ball is dropped from a height of 3.30m and is moving at 3.00m/s, How much mechanical energy was lost during the balls fall
An airplane with a speed of 89.1 m/s is climbing upward at an angle of 31.5 ° with respect to the horizontal. Relative to the ground, determine the angle of the velocity vector of the package just before impact
Describe the motion of a ball in a bus when the bus accelerates foward as it might be perceived by a person standing on the ground outside the bus
What must be the orbital speed of a satellite in a circular orbit 800 above the surface of the earth
Spiderman's webbing has a cross sectional area of A = 10^-6 m^2. The Young's modulus of the silk is Y = 200 x 10^10 Pa, and has a breaking strength of 1 x 10^9 Pa. How far will it have stretched before breaking
You hit a 0.2 kg golf ball up at 40o from the horizontal. It travels for 4.86 s and stops on an elevated green 10 m above its initial height traveling down at an angle of 35.4o below the horizontal
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