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a) what is the de Broglie wavelength of a 200g baseball with a speed of 20 m/s?
b) what is the speed of a 200g baseball with a de Broglie wavelength of .18nm?
What is the magnitude of the force applied throughout this time? What is the direction of the force applied throughout this time?
On a spacecraft, two engines fire for a time of 598 s. One gives the craft an acceleration in the x direction of ax = 4.92 m/s^2, Calculate the magnitude of the initial velocity
Light traveling in water strikes the boundary between two mediums at an angle of 35 degrees. what is the wavelength of the refracted light traveling at 1.85x10^8m/s
As a function of time, the velocity of the football can be written as . (If the acceleration of an object is constant, its average acceleration is the same for all time periods.) Calculate the average acceleration vector of the football for the ti..
A 60.0 g mass is attached to the bottom of a vertical spring and set vibrating. Find the frequency of oscillation
A coin slides over a frictionless plane and across an xy coordinate system from the origin to a point with xy coordinates, How much work is done by the force on the coin during the displacement
How far from a 53.6 mm focal-length lens must an object be placed if its image is to be magnified 2.12X and be real.
Inside the house where the temperature is 20C, we measure the length of an aluminum rod with a micrometer made of steel, find the length of the cold rod according to the cold micrometer
A narrow tube open at one end has varibale length. When a vibrating tuning fork is held near one end, What is a possible frequency of the tuning fork
A player uses a hockey stick to increase the speed of a 0.200 kg hockey puck by 6m/s in 2 seconds. how much force was exerted on puck? how much on the stick.
A 4.1-kg block slides down an inclined plane that makes an angle of 29° with the horizontal. Find the coefficient of kinetic friction between the block and plane
Many chemical reactions release energy. Suppose that at the beginning of a reaction, How much electric potential energy was lost in this reaction (in units of eV)
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