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In the Bohr model of the hydrogen atom, the speed of the electron is approximately 2.30 106 m/s.
(a) Find the force acting on the electron as it revolves in a circular orbit of radius 5.30 10-11 m
(b) Find the centripetal acceleration of the electron.
An airplane's takeoff speed is 320 km/h. If its average acceleration is 2.90 m/s^2, how long is it on runway after starting its takeoff roll.
What is total distance the bird travels by trains collide
A 2.9-kg box is sliding along a frictionless horizontal surface with a speed of 1.8 m/s when it encounters a spring. Determine the initial speed the box would need in order to compress the spring by 1.2 cm
a ferris wheel has a radius of 11.0 m and rotates once every 11 s, what is the force of the chair seat on you
A system gains 3400 J of heat at a constant pressure of 1.36 × 105 Pa, What is the change in the volume of the system
Estimate how many books can be shelved in a college library with 3400 of floor space. Assume 5 shelves high, having books on both sides
What is the speed of projectile immediately before it hits the ground if air friction does one and a half times as much work on projectile when it is going down as it did when it was going up.
A combination mercury- steam turbine takes saturated mercury vapor a boiler at 500 C and exhausts to steam boiler at 240 C. what is the ideal efficancy of this combination
A pipe has a narrow end compared to the other end. The area of the narrow section is one-half the area of the wide section. find the velocity of the water in the wider section
As a new electrical technician, you are designing a large solenoid to produce a uniform 0.250Tmagnetic field near its center. What current will you need to produce the necessary field
Assume a typical hummingbird has a lifespan of 4.00 years and an average heart rate of 1300 beats per minute. Compute the number of times a hummingbird's heart beats in its life, and express it in scientific notation. Make use of 365.24 days per y..
Use approximate relationships to find the electric field at a point 4 cm from the axis, measured radially outward from the midpoint of shell.
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