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A beam of electrons is incident on two slits separated by a distance of 2.0×10-6 m. The first-order bright fringes appear on a distant screen at an angle of 0.017 degrees from the central interference maximum.
Calculate the wavelength.
What is the momentum of the electrons?
Calculate the kinetic energy of the electrons.
A 0.900m -diameter vat of liquid is 2.60m deep. The pressure at the bottom of the vat is 1.40atm
The temperature of 3.00 mol of an ideal diatomic gas is increased by 40 degrees C without a change in pressure, How much energy is transferred to the gas as heat
The International Space Station ISS (the mass is approximately 990,000 pounds) orbits the earth at an altitude of approximately 250 miles above the surface of the earth.
An object of mass 48.0 g is initially placed in boiling water so that it is at 105° C. Then the object is dropped into a calorimeter, Find the specific heat of the object
A horizontal wire of length 0.50 m, carrying a current of 6.7 A, is placed in a uniform external magnetic field. When the wire is horizontal, Determine the magnitude of the external magnetic field
A train accelerates at 1.93 m/s2 from rest to a steady speed in 72.61. It maintains that speed for 20.25 miles, What is the total distance traveled
A sound wave has a frequency of 677 Hz in air and a wavelength of 0.50 m. What is the temperature of the air
A 29.0 kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 85.0 N and is directed at the angle of 30.0° above the horizontal. Find out the coefficient of kinetic friction.
A glass fiber with a thermal expansion coefficient of 5x10^6 C^-1, an elastic modulus of 72 GPa, Calculate the maximum flaw size that this fiber can tolerate
What is the direction from the players original point. he estimates that the car is about 400 m away.
If the internal energy of a system increases as the result of an adiabatic process, Calculate the work done on or by the system in part (a) if its internal energy increases by 700J
The train comes to a stop 6m from the point at which it was released. What is the magnitude of train's acceleration after its wheel begins to stick.
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