Question The radius of an orbit of hydrogen atom is 0.85 nm, the velocity of electron in this orbit is a × 10b m/s, What is the value of b?

If the crystal lattice constant is the length of the edge of the cube crystal unit in sodium, whose composition is type (BCC) equaí to (4.24A°) angstroms. What is the distance between two neighboring atoms? Calculate the sodium density if its atomic weight is (23).

Aan TUUR IEACHER The four particles shown below are connected by rigid rods of negligible mass where y,6.60 m. The origin is at the center of the rectangle. The system rotates in thexy plane about mezawth an angular speed of 5.90 rad/s. 3.00 kg 2.00 kg 200 kg L00 kg 4.00 m- (a) Calculate the moment of inertia of the system about the z axis. kg m? (b) Calculate the rotational kinetic energy of the system

if an electrif an electron travels with a velocity of 95% of the velocity of light wht would be the de-Brrogolie wavelength associated with this electron?

In the Bohr model of the hydrogen atom, an electron in the 4th excited state moves at a speed of 1.37 x 105 m/s in a circular path of radius 8.46 x 1010 m. What is the effective current associated with this orbiting electron? 4.12373E3 Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. mA

The charges and coordinates of two charged particles held fixed in an xy plane are 91 = 3.01 μC, x1 = 4.94 cm, y₁ = 0.559 cm and 92 = -5.09 µC, x2 = -2.10 cm, y2 = 1.11 cm. Find the (a) magnitude and (b) direction (with respect to +x-axis in the range (-180°; 180°]) of the electrostatic force on particle 2 due to particle 1. At what (c) x and (d) y coordinates should a third particle of charge 93 = 5.17 μC be placed such that the net electrostatic force on particle 2 due to particles 1 and 3 is zero? (a) Number i Units (b) Number i Units (c) Number i Units (d) Number i Units

Four coplanar forces act as shown. Calculate the moment of each force about point O. Calculate the algebra summation of the four moments about point O and determine the sense of rotation.

Lay out Karnaugh maps for three and four variables.

please type instead of handwriting  only answer G AND H IN DEGREE FORM  An electron is in a state with L = 1 (a) What multiple of ℏ gives the magnitude of the angular momentum? (b) What multiple of μB gives the magnitude of the orbital magnetic dipole moment? (c) What is the largest positive value of, (d) what multiple of ℏ gives the corresponding value of Lz, and (e) what multiple of μB gives the corresponding value of μorb, z? (f) What is the value of the semiclassical angle θ between the directions of the angular momentum vector and the z-axis? What is the value of angle θ for (g) the second-largest possible value of and (h) the smallest (that is, most negative) possible value of?

An electron and a proton are each placed at rest in a uniform electric field of magnitude 530 N/C. Calculate the speed of each particle 52.0 ns after being released. electron m/s proton m/s