Consider a simple model of the hydrogen atom

Reference no: EM13675978

Consider a simple model of the hydrogen atom where one electron is in a stable orbit around one proton at a distance of 0.05 nm. If the electron were moved to a larger stable orbit (say 0.1 nm), what would be the sign of: delta U = the change in potential energy? Delta K = the change in kinetic energy? Delta E = the change in mechanical (potential plus kinetic) energy? Would moving the electron to a higher orbit need positive or negative work from external forces?

Reference no: EM13675978

Questions Cloud

Examples of hydraulic- lift systems : Dentists’ chairs are examples of hydraulic- lift systems. If a chair weighs 1600 N and rests on a piston by a cross-sectional area of 1440 cm2, what force should be applied to the smaller piston with a cross-sectional area of 72 cm2 to lift the chair..

What is the increase in temperature of the brakes : A 750-kg car moving at 23 m/s brakes to a stop. The brakes contain about 15 kg of iron, which absorbs the energy. What is the increase in temperature of the brakes?

Temperature of the water when the lead becomes solid : A 175-g lump of molten lead at its melting point, 327°C, is dropped into 55 g of water at 20.0°C. What is the temperature of the water when the lead becomes solid? When the lead and water are in thermal equilibrium, what is the temperature?

Equilibrium and released from rest to slide on a horizontal : A 175-g object is attached to a spring that has a force constant of 76.5 N/m. The object is pulled 9.75 cm to the right of equilibrium and released from rest to slide on a horizontal, frictionless table. Compute the maximum speed of the object.

Consider a simple model of the hydrogen atom : Consider a simple model of the hydrogen atom where one electron is in a stable orbit around one proton at a distance of 0.05 nm. If the electron were moved to a larger stable orbit (say 0.1 nm), what would be the sign of: delta U = the change in pote..

What is tension in the string on both sides of the pulley : Two masses (mA = 4 kg, mB = 10 kg) are connected via a light string around a solid disk frictionless pulley (mp = 1 kg, rp = 20 cm). The coefficient of static and kinetic friction among all sur- faces is 0.2 and 0.1 respectively. The angle 1 = 30o wh..

Compute the acceleration of the car : A car, on a straight road, is stopped at a traffic light. When the light turns to green the car accelerates with a constant acceleration. It reaches a speed of 20.2 m/s (72.7 km/h) in a distance of 142 m. Compute the acceleration of the car.

What is the centripetal force acting on the car : A race car rounds a curve at 54 m/s. The radius of the curve is 406 m, and the car's mass is 685 kg. What is the centripetal force acting on the car? What is the car's (centripetal) acceleration?

A u-shaped tube open to the air on both ends : A U-shaped tube, open to the air on both ends, contains mercury. Water is poured into the left arm until the water column is 16.7cm deep. How far upward from its initial position does the mercury in the right arm rise? (In mm)

User Account

All Pages