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Calculate the de Broglie wavelength of a 4.6 MeV alpha particle emitted from an atomic nucleus whose diameter is approximately 1.6 x 10-14 m.
Calculate its minimum kinetic energy according to the uncertainty principle.
An astronomical telescope uses an objective power +2.00 D. If the length of the telescope is 52 cm, what is the focal length of the eyepiece
On a frictionless surface, a 3-kilogram cart moves at a velocity of 2 meters per second west, What is this slower speed
A bullet is fired through a board 8.0 cm thick in such a way that the bullet's line of motion is perpendicular to the face of the board. Find the total time the bullet is in contact with the board
A 1-cm-thick layer of water stands on a horizontal slab of glass. A light ray in the air is incident on the water 64? from the normal. what is the ray's angle from the normal
When 165 grams of an unknown metal at 225 degrees C is placed into 875 grams of water at 24.4 degrees C inside a perfect calorimeter, Find the specific heat capacity of the unknown metal
Illustrate the security threats that An industry will face when it implements a wireless network. Suppose that the industry occupies the six middle floors
The temperature of 1.5 kg of ethanol is 37c. What would the final temperature be if 80 000J of energy as heat is added to the ethanol.
The proper length of one spaceship is three times that of another. The two spaceships are traveling in the same direction, determine the speed of the faster spaceship
A 92.7-kg climber is scaling the vertical wall of a mountain. His safety rope is made of a material that, How much is the rope stretched when it breaks his fall and momentarily brings him to rest
A thin lens has a focal length of 10 cm. An object is located 15 cm to the left of the lens. What is the total magnification of the lens system
An oxygen bubble at the bottom of a lake 20. m deep has a volume of 1.20 cm^3, calculate the initial pressure inside the bubble at the bottom of the lake
1-µC point charge is located at x = 1.1 m, y = 2.8 m, and a -3.9-µC point charge is located at x = 2.3 m, y = -1.9 m. Find the magnitude and direction of the electric field at x.
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