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Consider a spring whose natural length is 20 cm is compressed by 10 cm and placed between two masses M= 8.0 kg and m= 4.0 kg. the spring constant is 200N/m and coefficient of kinetic friction between the blocks and the floor is 0.15 . The blocks are released and the spring decompresses and falls to the floor. What is the distance between the blocks when they come to stop? Assume that the work done by the friction during the expansion of the spring is negligible.
The 1994 Winter Olympics included the aerials competition inskiing. In this event skiers speed down a ramp that slopes sharplyupward at the end. The sharp upward slope launches them into theair, where they perform acrobatic maneuvers.
An object is placed 17.4 cm to the left of a thin diverging lens that has focal length ?11.7 cm. What is the distance between the object and the image
Three charged particles are placed at the corners of an equilateral triangle of side 1.20m. The charges are +7.0μC and -6.0μC. Compute the magnitude and direction of the net force on all due to the other two.
A steam pipe is covered with 1.50 centimeter thick insulating material of thermal conductivity of 0.200 cal/cm•°C•s. Determine how much energy is lost every second
A hydrogen atom has an ionization energy of 13.6 ev. An electron in the n = 4 state makes a transition to the n = 2 state. What is the wavelength of the emitted photon?
A 70 kg man (rad=0.25m) standing on a 10-kg disc (rad=0.4m) with his arms extended (rad=0.9m) holding a 15-kg weight in each hand. What is the rotational inertia of man with weights.
a 75m-long train begins uniform acceleration from rest. the front of the train has a speed of 23 ms when it passes a
Why is the thermal energy not shared instantaneously with the rest of the block to warm it as a whole?
A 2kg block is moving to the right at 1.0m/s just before it strikes and sticks to a 1.0 kg block initially at rest
A farmer measures the distance around a rectangular field. The length of each long side of the rectangle is found to be 29.59 m, What is the total distance around the field
Cartesian coordinate system is characterized by three orthogonal unit vectors (orts) i, j, and k, which are parallel to the x-, y-, z-axis, respectively. What are the coordinates of these vectors
An object with a mass of 10 kg is resting on a wedge that is 32 degrees from horizontal. What is the normal force exerted on the mass from the wedge
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