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A moving 4.50 kg block collides with a horizontal spring whose spring constant is 343 N/m. The block compresses the spring a maximum distance of 11.00 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal surface is 0.270. What is the work done by the spring in bringing the block to rest?
1. Chameleons use their tongues to catch their prey. Their tongues typically accelerate at 250 m/s2 for up to 20 ms, then they travel at constant speed for a further 30 ms. During this total duration, of acceleration plus constant motion, of 5..
The initial height of the ball is 60.0m and has a potential energy and initial pe of 1176.00, What was the maximum speed after it hit bottom
A wire carrying a current of 2.10 A is bent into the shape of a square loop of side length 5.92 cm and is placed in the xy-plane. What is the torque on the wire loop
A uniformly dense 50 cm rod with a total mass of 0.2 kg is standing perfectly vertically on a horizontal surface. What is the magnitude of the angular acceleration of the rod
A sample of dry air has a temperature of 273K, a volume of 4 m^3 and a pressure of 2 atmospheres, Sketch the process on a P-V diagram and mark the final values for pressure and volume after each change, Calculate the total work done.
A 3600 kg truck is moving at a constant speed of 50.0 m/s. The coefficient of friction between the tires and the road is .550. find What is the net force acting on the car
A novice skier, starting from rest, slides down a frictionless 34° incline whose vertical height is 128 m. How fast is she going when she reaches the bottom.
A sound source emits sounds of frequency 205 Hz that travel through still air at 340 m/s. The listener moves at 90 m/s relative to the still air away from the stationary source. Find the frequency heard by the listener.
A 400 g mass is suspended from a thread 45 cm long that can sustain a maximum tension of 8.0 N before breaking. What is the maximum allowable amplitude for pendulum motion of this system
An ambulance is generating a siren sound at a frequency of 2400 Hz. The velocity of sound is 34.0 m/s. What is the frequency of the siren perceived by the observer
The definition of power differs from the definition of work in that the former always involves...
What is the maximum possible temperature of the cold reservoir.
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