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The nucleus of the hydrogen atom has a radius of about 1.1 x 10-15 m. The electron is at a distance of about 5.2 x 10-11 m from the nucleus. Assuming the hydrogen atom is a sphere with a radius of 5.2 x 10-11 m, find
(a) the volume of the atom,
(b) the volume of the nucleus, and
(c) the percentage of the volume of the atom that is occupied by the nucleus.
Two loudspeakers emit sound waves along the x-axis. What is the phase difference between the speakers
A uniform electric field of magnitude 395 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 3.00 cm. (a) What is the work done by the field on the electron? J (b) What is the change in..
Marta flies past you at 78% of the speed of light, traveling in a spaceship that would measure 50 meters from end to end if it were at rest in your reference frame. If you measure the length of her spaceship as it goes by, how long will it be from ..
Four equal charges of +2.5×10-6 C are placed on the corners of one face of a cube of edge length 15.0 cm. A charge of -2.5×10-6 C is placed at the center of the cube. What is the magnitude of the force on the charge at the center of the cube?
a. What star has the coolest surface temperature b. Which star has the hottest surface temperature c. What is the approximate range of radii of stars in the main sequence compared to the size of the sun
A 2.46 x 10-2-kg block is resting on a horizontal frictionless surface and is attached to a horizontal spring whose spring constant is 110 N/m. The block is shoved parallel to the spring axis and is given an initial speed of 10.4 m/s, while spring is..
A football is kicked at an angle of 37.0 degrees with a velocity of 20.0 m/s. calculate the velocity at the maximim height
A 75 kg patient swallows a 30 micro Ci beta emitter wtih a half life of 5 days. The beta partiles are emitted with an average energy of .35MeV. What dose equivalent does the patient recieve
When 16.8 J was added as heat to a particular ideal gas, the volume of the gas changed from 42 cm3 to 87 cm3 while the pressure remained constant at 1.3 atm. (a) By how much did the internal energy of the gas change
A 58 kg gymnast does a vault. He is traveling at 5.6 m/s just before he lands. He comes to a stop in 0.08 s. What is the average net force acting on him during this time
After being accelerated to a speed of 1.84×105, the particle enters a uniform magnetic field of strength 1.00 and travels in a circle of radius 35.0. The results of this experiment allow one to find.
A Wheatstone bridge is connected to a nine volt battery and is balanced when R1 = 6.3 k?, R2 = 3.3 k?, and R3 = 9.7354 k?
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