The wavelength of an electron whose velocity is 1.7 ã 104 m/s and whose mass is 9.1 ã 10-28 g is m. the wavelength of an electron whose velocity is 1.7 ã 104 m/s and whose mass is 9.1 ã 10-28 g is m. 12 4.3 ã 10-8 4.3 ã 10-11 2.3 ã 10-7 2.3 ã 107

Suppose that a mass of 2 kg is attached a spring whose spring constant is 50. the system is damped such that b = 12 . the mass is set in motion with an initial velocity of -8 m/s at a position 0 meters from equilibrium. set up and solve a differential equation that models this motion. write your solution in the form a cos ( ω t − α ) where α is a positive number. use your solution to fill in the information below: what is the amplitude of the motion? what is the value of ω ? what is the phase shift?

Amother used 150 watts of power to raise a 15 newton object in a time interval of 8.0 seconds. through what vertical distance was the object raised ?

Find an expression for the electric field e⃗ at the center of the semicircle. hint: a small piece of arc length δs spans a small angle δθ=δs /r, where r is the radius. express your answer in terms of the variables q, l, unit vectors i^, j^, and appropriate constants.