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A 5 kg block has an initial speed of 10m/s down a frictionless include plane. Once the block reaches the bottom of the incline it encounters a frictionless flat plane with a vertical wall at the opposite end. Attached to the wall is a spring with a spring constant of 650 N/m. Determine the amount by which the spring compress when it impacts and comes to rest.
A refracting telescope has an objective lens of focal length 16.0in and eyepieces of focal lengths 12.0mm, What are the largest and smallest angular magnifications
A professor's office door is 0.9 wide, 2.0 high, and 4 thick; has a mass of 25; and pivots on frictionless hinges. A "door closer" is attached to door and top of the door frame.
Donovan Bailey set a world record for the 100-m dash on July 27, 1996. find the time that was recorded on Earth
The total current delivered to a number of devices connected in parallel is the sum of the individual currents in each device. Obtain the total current delivered by the source
An ideal gas has a temperature of 850 K. calculate the total kinetic energy of 1 mol of this gas
A ten pound car wheel has a moment of inertia of 0.52 kg m2. How much torque is required to stop the wheel in 43.21 s?
A long rod, insulated to prevent heat loss along its sides, is in perfect thermal contact with boiling water (at atmospheric pressure) at one end and with an ice-water mixture at the other.
A 4.0cm tall apple is 20cm in frount of a plano-convex lens of focal length 75cm. Find the location of the image of the apple
A listener increases his distance from a sound source by a factor of 3.03. what is the change in the sound intensity level in dB
If a vehicle is traveling at velocity v and takes a distance d to stop, then how fast is a vehicle traveling if it takes a distance of 3d to stop. suppose mass and acceleration are equal.
A star lying 35pc from the Sun has proper motion of 0.2"/yr. calculate the magnitude of its three-dimensional velocity relative to the Sun
The spheres are given the same electric charge Q and it is found that they come to equilibrium when each string is at an angle of 5 with the vertical. Each string is 30 cm long.
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