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A beam of electrons is incident on two slits separated with a distance of2.0×10-6 m. The first-order bright fringes appear on a distant screen at an angle of 0.021 degrees from the central interference maximum.
Compute the wavelength.
What is the momentum of the electrons?
Compute the kinetic energy of the electrons.
A convex spherical mirror, whose focal length has a magnitude of18.8cm, is to form an image11.2cm behind the mirror. Where should the object be placed? What is the magnification of the mirror?
Consider a system consisting of three particles: m1 = 5 kg, 1 = m/s, m2 = 3 kg, 2 = m/s, m3 = 5 kg, 3 = m/s. What is the translational kinetic energy of this system
A hot-air balloon is ascending at the rate of 11 m/s and is 68 m above the ground as a package is dropped over the side. How long does it take to reach the ground.
Calculate change in kinetic energy
The light energy that falls on a square meter of ground over the course of a typical sunny day is about 20 MJ. The average rate of electric energy consumption in one house is 1.0 kW. Find the energy consumption and area required by the solar cell
Calculate the approximate volume of a nucleus of uranium, 235/92 U and Calculate the approximate radius of a nucleus of uranium, 235/92 U
A 9.7 Ω resistor,a 10.8 µF capacitor, and a 27.9 mH inductor are connectedin series with a 120 V (rms) source with variable frequency. At what frequency will the current be maximum? Find the maximum rms current.
In an insulated vessel, 260 g of ice at0°C is added to 630 g of water at19.0°C. What is the final temperature of thesystem? How much ice remains when the system reaches equilibrium?
As shown in the figure above, a ball of mass 0.36 g and positive charge q =36.4 mC is suspendedon a string of negligible mass in a uniform electric field. Weobserve that the ball hangs at an angle of J=15.0 degrees from the vertical. What is the ..
An ice cream cone is filled with melted vanilla ice cream of density 1.21g/cm3 The cone is 10.1cm long and has a diameter of 6.1 cm at the larger top end. Find the gauge pressure at the bottom of the cone
A large balloon of mass 220 kg is filled with helium gas until its volume is 321 m3. Calculate the buoyant force acting on the balloon
An aluminum rod is 16.0 cm longat 20°C and has a mass of 350 g. If 13000 J of energy is added to the rod by heat, what is the change in length of the rod
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