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An electric field is generated by a charge imbalance and the field is expressed by Coulomb's Law. What is the value (and UNITS) of the proportionality constant in Coulomb's Law?
A force in the negative direction of an x axis is applied for 24 ms to a 0.40 kg ball initially moving at 10 m/s in the positive direction of the axis. What is the ball's speed just after the force is applied
A semiconductor (GaAs) laser emitting at 800 nm has a 400 micrometer cavity length with a refractive index n=3.6. If the gaing exceeds the total loss αt throughout the range 750 nm
A 0.47 m long guitar string, of cross-sectional area 1.0 10-6 m2, has Young's modulus Y = 1.90 109 N/m2. By how much must you stretch the string to obtain a tension of 10 N
A 72 skydiver can be modeled as a rectangular "box" with dimensions 25 cm*40cm* 1.8m . What is his terminal speed if he falls feet first
two object are connected by a massless string that passes over an ideal pulley. calculate the two components of the force of weight for the object on the incline plane
In this problem you will determine the distance to Jupiter by applying F=ma for circular orbits. By observing Jupiter we can determine that it takes 11.895 years to orbit the Sun. determine the distance of Jupiter from the Sun
The polonium isotope 210Po, an alpha emitter, has a half-life of 138.38 days. You happen to have a 1.4 g cube of 210Po, How long will it take to boil the water
A string with both ends held fixed is vibrating in its third harmonic. The waves have a speed of 192m/s and a frequency of 200Hz. Calculate the maximum transverse velocity of the string at this point
One generator uses a magnetic field of 0.15 T and has a coil area per turn of 0.045 m2. A second generator has a coil area per turn of 0.015 m2. What magnetic field should be used in the second generator
What is constant speed V
for which real numbers x do the vectors x 1 1 1 1 x 1 1 1 1 x 1 1 1 1 xnot form a basis of r4 ? for each of the values
White light shines through a diffraction grating and onto a screen, What is the number of lines per (mm) for this grating and What is the number of lines per (cm)
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