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Find through what potential difference (Delta V) must electrons be accelerated ((From rest) so that they will have the same wavelength as an X ray of wavelength 0.160 nm?
Use 6.63 x 10-34 for planks constant, 9.11 x 10-31 kilogram for the mass of an electron, and 1.6 x 10-19 for the change on electrons.
A 4.60-kg ball is dropped from a height of 10.0m above one end of a uniform bar that pivots at its center. How high will the other ball go after the collision
75-kg person stands on a 6.0-m-long 47-kg ladder. The ladder is tilted 60° above the horizontal. The coefficient of friction between the floor and the ladder is 0.42. The coefficient of friction between the wall and the ladder is zero.What dis..
While in outer space, a small however powerful, spherical shaped light source is turned on with us. The light source delivers 1.00 kW/m2 at1.00 cm from its center. There is a small particle of space dust at rest, 10.0 cm away from the center of the l..
What is the smallest thickness of a soap film that would appear black if illuminated with 470 nm light? Assume there is air on both sides of the soap film.
A huge explosion is heard 26.2 miles away. How long does it take the sound to travel that far
A 2.60 kg steel gas can holds 15.0 L of gasoline when full. What is the average density of the full gas can, taking into account the volume occupied by steel
In open heart surgery a much smaller amount of energy will defibrillate the heart, What voltage is applied to the 9.00 µF capacitor of a heart defibrillator that stores 55.0 J of energy
a car travels up a hill at a constant speed of 55 kmh and returns down the hill at a constant speed of 22 kmh.
A bat moving at 2.3 m/s is chasing a flying insect. The bat emits a 51 kHz chirp and receives back an echo at 51.33 kHz, At what speed is the bat gaining on its prey
A rock thrown with an initial velocity of 38.5 m/s at an angle of 55.0 o with respect to the horizontal has a range of 975 m on a certain planet
A satellite is in a circular orbit just above the surface of themoon. The radius of the moon is 1738 km. What is the period of the satellite orbit
a sample of rock from an asteroid is assayed and found to contain 3.62 parts per million uranium, how old is this sample
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