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1. The radius of the hydrogen atom is 0.053 nm.
(a) What is the Coulomb force between the electron and the proton in the atom?
(b) What is the centripetal acceleration of the electron orbiting the proton (assuming the proton is at rest since it is much heavier)?
(c) What is the frequency of the circular motion of the electron in the hydrogen atom? Please show work.
The two liquids do not mix. What is the difference in height between the top surface of glycerine and top surface of the alcohol.
A 19 g bullet is shot into a 5270-g wooden block standing on a frictionless surface. The block, with the bullet in it, acquires a velocity of 2.4 m/s. compute the velocity of the bullet before striking block.
A spaceship leaves Earth traveling at 0.65 c. A second spaceship leaves the first at a speed of 0.80 c with respect to the first. Calculate the speed of the second ship with respect to Earth if it is fired directly backward toward Earth
Bob, of mass m, drops from a tree limb at the same time that Esther, also of mass m, begins her descent down a frictionless slide. If they both start at the same height above the ground, which is true about their kinetic energies as they reach the gr..
9 grams of Alum at 200 C and 21 grams of Copper anre dropped into 50 cm^3 of Ethyl Alcohol at 15 C. what was the intitial temp of the Copper
A world class sprinter accelerates to his maximum speed in 3.80 s. He then maintains this speed for the remainder of a 100 m race, finishing with a total time of 10.30 s. What is the runner's average acceleration throughout the first 3.80 s.
Friction and air resistance are negligible. Illustrate what speed does the ball have when the cable makes an angle of 30 degrees with respect to the vertical?
A bullet is fired at a stationary wooden block at 200 m/s. The mass of the block is 2kg the bullet embeds in the block during the collision. What is the mass of the bullet
What key considerations are involved in setting up a computer network for an integrated health care system and how do integrated systems affect the installation of networks.
If a car traveling at 66 km/h will skid 20 m as its brakes lock, how far will it skid if it is traveling at 120 km/h when its brakes lock.
A wire with mass 38.0g is stretched so that its ends are tied down at points a distance 78.0cmapart. What is the speed of propagation of transverse waves in the wire
One summer day, you decide to make a popsicle. You place a popsicle stick into a 9-oz glass of orange juice, How long does it take your popsicle to freeze
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