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A) If the De Broglie wavelength of an electron is equal to 250 nm calculate the velocity of the electron. Assume that the electron's speed is non-relativistic.
B) If the kinetic energy of an electron is 910 eV, calculate its De Broglie wavelength. For this non-relativistic electron you must first calculate its velocity from the general kinetic energy equation. Then you can find the De Broglie wavelength of the electron.
Imagine that a hypothetical life form is discovered on our moon and transported to Earth. On a hot day, this life form begins to sweat, and it is determined that the heat of vaporization of its sweat is 365 cal/g.
A skateboarder shoots off a ramp with a velocity of 6.80m/s, directed at an angle of 59° above the horizontal. The end of the ramp is 1.10 m above the ground.
A child is pushing a merry-go-round. The angle through which the merry-go-round has turned varies with time according to ?(t)=?t+?t3, What is the initial value of the angular velocity
A ladder of negligible mass and length 5.00 m rests against a vertical wall. The ladder makes an angle of 53.1 with the ground. Find the forces of the ground and the wall on the ladder
26 g of copper pellets are removed from a 300 degree Celsius oven and straight away dropped into 116 mL of water at 25 degree Celsius in an insulated cup. What will the new water temperature be.
Over a time interval of 1.92 years, the velocity of a planet orbiting a distant star reverses direction, changing from +19.7 km/s to -19.1 km/s. determine the total change in the planet's velocity
A ghost leaves a thin slime of ectoplasm (n=1.8) on a puddle of water (1.33). When looking down with light shining on the puddle, What is a possible thickness of the slime
An arc 14.0 cm in length on the circumfrence of a circle subtends an angle of 126 degrees. What is the radius of the cirlce
What is the wavelength of the spectral line? B) Assuming this line is from a transition from level n1 = 3 to level n2 = 2 (i.e. the longest wavelength Balmer series transition), what do you calculate for the value of Rydberg constant.
Atennis ball of mass 5.5*10-2and a speed of 39 M/s strikes a wall at a 45 degree angle, what is the direction of of the balls impuse in relation to the wall
Announcers at a certain radio station say that they are at "95 FM on your dial," meaning that they transmit at a frequency of 95 MHz (95 megahertz, or 95 million cycles per second). What is the wavelength of the radio waves from this station?
A bullet shot straight up into the air returns to it's starting point in 10 seconds. What is the initial speed of the bullet
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