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In the figure above the mass to the spring is 0.2 kg. The spring's constant is 60 N/m. The mass is stretched to a position of 0.5 m and released. The final position is 0.1 m.
A. Find the change in potential energy of the system.
B. What is the work done by the spring?
A 79 kg pole-vaulter falls from rest from a height of 4.6 m onto a foam-rubber pad. The pole-vaulter comes to rest 0.30 s after landing on the pad. compute the athlete's velocity just before reaching the pad.
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Starting from rest,a 10 cm diameter compact disk takes 3.0 s to reach its operating angular velocity of 2200 rpm. assume that the angular acceleration is constant.
A model rocket launches with initial net upward accelration 1.5g (g is 9.8), This accelaration is maintained for 3 seconds. At what time does the rocket reach its maximum height
A piano tuner sounds two strings simultaneously. One has been previously tuned to vibrate at 301.0 Hz. The tuner hears 2.0 beats per second. What was the original frequency of the untuned string
A standard 100 W (120 V) lightbulb contains a 7.40 cm-long tungsten filament. What is the diameter of the filament
What is the smallest distance required to stop the plane
The vertical displacement of particles in a string (when a wave is propagating through it) is given by y = (0.02) sin[(10?)t - (8?)x], where everything is measured in standard units, meters and seconds. What is the amplitude of the wave?
A 5.9-kg rock and a 6.6 × 10-4-kg pebble are held near the surface of the earth. Determine the magnitude of the gravitational force exerted on each by the earth
An extreme distance runner is having an easy training day and runs 34 km west over 3 hours, Calculate his/her distance, displacement, speed and velocity for the entire training session
q1. a trapeze artist swings in simple harmonic motion with a period of 7.0 s. the acceleration of gravity is 9.81 ms2.
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