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A spring of spring constant k = 350 Nm-1 is used to launch a 2.5-kg block along a horizontal surface by compressing the spring by a distance of 22 cm. If the coefficient of sliding friction among the block and the surface is 0.50, how far does the block slide?
A 0.527-kg mass is attached to a horizontal spring with k = 108 N/m. The mass slides across a frictionless surface. Find the mechanical energy of the system.
A car traveling at 25 m/s ( about 55 mph) crashes into a road barrier and comes to a stop in 0.2 sec. What is the average force in Newtons felt by a 75 Kg person in a set belt
an underwater scuba diver sees the sun at an apparent angle of 47.0deg from the vertical. what is actual direction of
The position of a rocket sled on a straight track is given as x = a t3 + b t2 + c, What is the sled's average speed between t = 3.48 s and t = 6.92 s
A meteoroid is speeding throughout the atmosphere, travelling east at 16.80 km/s while descending at 13.60 km/s. What is its speed in km/s.
The speed of a transverse wave on a string is 440 m/s, and the wavelength is 0.13 m. The amplitude of the wave is 1.6 mm. How much time is required for a particle of the string to move through a total distance of 1.0 km?
Two charged plates create a potential difference of 190 V. At a point halfway between the plates an electron is released from rest. What was the initial speed and direction of the proton
how would the intensity of light vary with distance from the source according to the a wave theory b particle photon
question1one of the ways that a forensic scientist can figure out the make and model of a car from a hit and run
Mars Rover When the Mars rover was deployed on the surface of Mars in July 1998, radio signals took about 14 {rm min} to travel from Earth to the rover. How far was Mars from Earth at that time.
A car (mass = 1080 kg) is traveling at 25.8 m/s when it collideshead-on with a sport utility vehicle (mass = 2010 kg) traveling inthe opposite direction. At what speed was the sport utility vehicle traveling
At rush hour, the noise from a highway is 10?4 W/m2 with 100 cars passing a given point a minute. At night the average noise is reduced to 10?6 W/m2. How many cars are now driving on the highway?
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