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A horizontal spring with spring constant 140 is compressed 20 and used to launch a 2.6 box across a friction less, horizontal ground. After the box travels little distance, the surface becomes rough. The coefficient of kinetic friction of the box on the surface is 0.15.
Find How far the box slides across the rough ground before stopping?
A carbon steel piano wire 1.4 m long with a cross-sectional area of 2 × 10?6 m2 and mass 0.1 kg is stretched 23 mm. Determine the speed of transverse waves on the string. For carbon steel, Young’s modulus is 2 × 1011 N/m2.
q1. a 7.40-nc charge is positioned 1.70 m from a 4.80-nc charge. a find the magnitude of electrostatic force that one
An arrow is shot at an angle of θ=45° above the horizontal.
In the two-slit experiment, the distance between the slits and the screen is 1.10 m and the distance between the slits is 0.100 mm. what is the wavelength of light
A 12-kg block initially slides at 18 m/s on a flat rough surface and eventually stops. what is the entropy change of the system
At the instant the alpha particle leaves the nucleus, the centers of the two are 7.5 apart and essentially at rest. Find their speeds while they're a great distance apart. Treat each particle as a spherical charge distribution.
A solar collector is placed in direct sunlight where it absorbs energy at the rate of 864 J/s for each square meter of its surface. What equilibrium temperature does the collector reach
A baseball is thrown from the roof of 20.4m -tall building with an initial velocity of magnitude 13.9m/s, What is the speed of the ball just before it strikes the ground
a spherical gaussian surface is drawn inside a spherical object as shown. upon inspection no net charge exists within
assume that adults have iq scores that are normally distributed with a mean of 105 and a standard deviation of 20. find
For tests using a ballistocardiograph, a patient lies on a horizontal platform that is supported on jets of air. determine the recoil velocity
The fundamental frequency of a pipe that is open at both ends is 598Hz. How long is this pipe
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