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A 2 kg cart has a spring with K = 5000 N/m attached to its front, parallel to the ground. This cart rolls at 4m/s toward a stationary1 kg cart.
a) Find the speed of all carts after the collision?
b) Find the maximum compression of the spring through the collision?
A spring (k = 866 N/m) is hanging from the ceiling of an elevator, and a 7.3-kg object is attached to the lower end. By how much does the spring stretch
When two unknown resistors are connected in series with a battery, the battery delivers 235 W and carries a total current of 5.00 A. Determine the values of the two resistors
The resultant displacement has a magnitude of 6.6m directed at the angle of 137 degrees from the positive x axis.
The maximum speed and acceleration of a simple harmonic oscillator are 0.96 m/s and 1.58 m/s. Find the oscillation amplitude. Express your answer with the appropriate units.
Calculate the nonconservative work
A radioactive isotope has an activity of 8.09 mCi. After 3.05 hours the activity is 6.31 mCi. What is the half-life of the isotope?
In a die-casting operation 0.1 kg charges of molten zinc alloy at 410 degrees C are injected at a rate of 120 charges per hour. Calculate the average die temperature after a die-casting operation
A 45 kg figure skater is spinning on the toes of her skates at1.0 rev/s. Her arms are outstretched as far as they willgo. In this orientation, the skater can be modeled as acylindrical torso (40 kg, 20 cm average diameter, 160 cm tall) plustwo rod..
a driver involved in an accident claims he was going only 42 mph. when police tested his car they found that when his
A current of 10.0 mA is maintained in a single circular loop with a circumferenceof 1.60 m. A magnetic fieldof0.550 T is directed parallel tothe plane of the loop. What is the magnitude of the torque exerted by the magnetic field on the loop?
A factory worker pushes a 34.0 kg crate a distance of 3.7 m along a level floor at constant velocity by pushing horizontally on it, How much work is done on the crate by the normal force
During a solar eclipse, the Moon, Earth, and Sun all lie on the same line, with the Moon between Earth and the Sun. DATA: Msun=1.991×1030 kg, Mearth=5.98×1024 kg, Mmoon=7.36×1022 kg.
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