i attached the question below. can you please do it on paper and scan it to the computer, it is difficult to follow text. please show all work including how you got the center of mass.

i attached the question below. all three i sent go together, but i sent them as three different questions. thank you

A proton is initially at rest at a point where the potential is 454 V. Some time later the proton is at a point where the potential is 192 V. If no force other than the electrostatic force acts on the proton, what is its final kinetic energy?

Two point charges, q1 = +20.0 nC and q2 = +11.0 nC, are located on the x-axis at x = 0 and x = 1.00 m, respectively. Where on the x-axis is the electric field equal to zero?

A transverse traveling wave on a cord is represented by where and are in meters and is in seconds.

A screen is placed 52.0 cm from a single slit, which is illuminated with light of wavelength 684 nm. If the distance between the first and third minima in the diffraction pattern is 3.00 mm, what is the width of the slit?

what is the normal range (mgldl) for blood glucose

The arm in the figure below weighs 38.0 N. The force of gravity acting on the arm acts through point A. Determine the magnitudes of the tension force t in the deltoid muscle and the force s of the shoulder on the humerus (upper-arm bone) to hold the arm in the position shown.

Two 340 kg (756 lb) masses are separated by a distance of 5 m. Using Newton's law of gravitation, find the magnitude of the gravitational force exerted by one mass on the other.

A 160 kg woman stands at the rim of a hor- izontal turntable with a moment of inertia of 3.0 103 kg m2 and a radius of 2.2 m. The system is initially at rest, and the turntable is free to rotate about a frictionless vertical axle through its center. The woman then starts walking clockwise (when...