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A 3.0-kg object moving in the positive xdirection has a one-dimensional elastic collision with a 5.0-kg object initially at rest. After the collision the 5.0-kg object has a velocity of 6.0 m/s in the positive xdirection. What was the initial speed of the 3.0 kg object?
Consider a universe where the matter density is 0, and it has a significant cosmological constant lambda. Determine how old is the universe in this case
your refrigerator has a mass of 124.7 kg including the food in it. it is standing in the middle of your kitchen and you
Using the equations from # 2 and # 3 above, and the equation I = I0 e-μd, derive the equation for the ratio of sensitivity of two films (call them 1 and 2) as a function of tube voltage, tube current, source-to-film distance, exposure time, and li..
At what two points between object and screen may a converging lens with a 3.40cm focal length be placed to obtain an image on the screen? Enter your answer as two numbers, separated with a comma. Count the distances from the object.
An astronaut of mass 73 kg pushes off a satellite of mass 420 kg, exerting a force of 120 N for the 0.82 s they are in contact. What is the speed of the astronaut after they have separated
A thin-walled hollow sphere with a mass of 22 kg is rolling without slipping. Its translational speed is 1.6 m/s. Determine the total kinetic energy of the rolling sphere
A space traveler weighs 580 N on earth. What will the traveler weigh on another planet whose radius is three times that of earth and whose mass is twice that of earth?
A spaceship is moving relative to an observer with a speed of .7c shines a beam of light in the forward direction, directly toward the observer. What is the spent of the beam of light relative to the observer?
Find the new radius of curvature. Assume that the changes are small enough that the distances between the surfaces remain unchanged.
An artificial satellite circles Earth in a circular orbit at a location where the acceleration due to gravity is 9.00 m/s2. Determine the orbital period of the satellite
The load is applied in the L direction of the plate and B basis design values are assumed. For ultimate stress design, the tensile stress in the lug is assumed to be s = P/ [(b-d)h] and the bearing stress in the lug along the pin-lug interface is ..
an lc circuit consists of a capacitor with c2.90mf and an inductor with l30.0mh. at t0 the capacitor has a charge
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