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In a simple model of the hydrogen atom an electron orbits a proton at 2.18 x 10^6 m/s in a circle radius 5.29 x 10^ -11 m.
1. Find the direction of the electron's angular momentum. Imagine that the electron is circling its proton in a counter-clockwise direction as seen from above.
2. Find the magnitude of the electron's angular momentum Provide appropriate units.
The drill pipe has an outer diameter of 75 mm, a wall thickness of 6 mm, and a weight of 0.8 kN/m. If it is subjected to a torque and axial load as shown, determine the principal stresses and maximum in-plane shear stress
An observation satellite orbits the planet at a height of 1000. What is the projectile's speed as it passes the satellite
The escape velocity of a bullet from the surface of planet Y is 1791 m/s. Calculate the escape velocity from the surface of the planet X
Make a table summarizing the rules for circuits with resistors: How to combine resistors in parallel, how do voltages behave in series and in parallel
A 28.0-kg block is connected to an empty 2.46-kgbucket by a cord running over a frictionless pulley. Calculate the mass of sand added to the bucket
Six artificial satellites complete one circular orbit around a space station in the same amount of time. Each satellite has mass and radius of orbit. The satellites fire rockets that provide force needed to keep a circular orbit around the space stat..
A rectangular loop consists of N = 100 closely wrapped turns and dimensions a = 0.4m and b= 0.3m. What is the expected direction of rotation of the loop
A fisherman accidentally steps off the ledge of a 4.0 meter-high dock and falls into the lake below the dock. what is the fisherman's speed on entering the water
computer chips are etched on circular cylinder wafers of thickness 0.60mm that are sliced from a solid cylindrical silicon crystal of length 30cm . If each wafer can hold 100 chips, what is the maximum number of chips that can be produced from one..
Determine the work done on the box by each of the four forces that act on the box. Be sure to include the proper plus or minus sign for the work completed by each force.
At a large business, employees must report to work at 7:30 A.M. The arrival times of employees is approximately symmetric and mound-shaped with mean 7:22 A.M. and standard deviation 4 minutes.
Two point charges, q1= 2.40 nC and q2= -6.50 nC, are 0.100 m apart. Point A is midway between them; point B is 0.080 m from q1 and 0.060 m from q2 (see the attachment). Take the electric potential to be zero at infinity.
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