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An electron is moving at 3.16 x 10^4 m/s. A photon of what wavelength would have the same momentum?
In November 2013, NASA launched the MAVEN (Mars Atmosphere and Volatile EvolutionN) mission to study the atmosphere of Mars. On September 22, 2014, the MAVEN spacecraft experienced its closest approach of Mars. Prior to performing a maneuver to captu..
The figure shows two metal disks of the same size and material oscillating in and out of a region with a magnetic field. One disk is solid; the other has a series of slots. Is the retarding effect of eddy currents on the solid disk greater than, l..
A steel tube has a length of 8.220 centimeter, an inside diameter of 2.540 centimeter and an outside diameter of 2.650 centimeter at -125 °C. Find the new values of these parameters at 125 °C
The intensity of solar radiation at the earth's orbit is about 1360 W/m2. Using 1.5 × 1011 m for the distance from the earth to the sun, calculate the total power radiated by the sun
What is the angular magnification when this lens forms a (virtual) image at -infinity. (I've done this one. The answer is 2.27. But I can't figure out how to do the others.)
A horizontal force of 100 N pushes a 10 kg block up a frictionlessincline that makes an angle of 25° with the horizontal. find the normal force that the incline exerts on the block
Jack is a second-grade student. He seems to have no interest in learning, frequently daydreaming in class and frequently disrupting the class by throwing objects at other students. Explain how a bio psychosocial approach may provide both an integrate..
The reel has radius R and moment of inertia I. One end of the block of mass m is connected to a spring of force constant k, and the other end is fastened to a cord wrapped around the reel. The reel axle and the incline are frictionless. The reel i..
a proton moves vertically upward perpendicular to a uniform magnetic field and deflects to the right as you watch it. What is the direction of the magnetic field
A pendulum is released from a height of 1.80 m. What is its velocity if it has a mass of 2 kg
A well insulated calorimeter contains m1= 150g steam at a temp t1= 110 celcius. water at a temp of t2=10 celcius is poured in the calorimeter. the final equilibrium temp for the water in the calorimeter is tfinal=24 celcius. the specific heat of ..
A projectile is fired at an upward angle of 45° from the top of a 308m cliff with a speed of 198 m/s. What will be its speed while it strikes the ground below? (Use conservation of energy.)
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