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Three masses (A, B and C) with the same momentum are moving across a horizontal frictionless surface. The masses are respectively mA = m, mB = 2m, and mC = m/3. Rank the masses in order of decreasing kinetic energy. That is, the mass with the most kinetic energy is first, and the mass with the least kinetic energy is last. (Use only ">" or "=" symbols. Do not include any parentheses around the letters or symbols. Use A, B, and C to construct your answer.)
The arm of a crane is 17.0 meter long and makes an angle of18 degree with the horizontal. Find the maximum torque the crane can withstand if the maximum load is 454 N
An electron is shot into one end of a solenoid. As itenters the uniform magnetic field with in the solenoid, its speedis 840 m/s and its velocityvector makes an angle of 30° with the central axis of the solenoid.
An electrically neutral model airplane is flying in a horizontalcircle on a 3.0m guideline, which is nearly parallel to theground. The line breaks when the kinetic energy of the plane is 50.0 J. Reconsider the same situation, except that now there..
A young male adult takes in about 5.0 10-4 m3 of fresh air during a normal breath. Fresh air contains approximately 21% oxygen. find the number of oxygen molecules in a normal breath
Two small metallic spheres, each of mass m = 0.192 g, are suspended as pendulums by light strings of length L as shown in the figure below. The spheres are given the same electric charge of 7.6 nC, and they come to equilibrium when every string is at..
what is the diameter of the copper rod. Pull horizontally on a crate with a force of 140 N and it slides across the floor in a dynamic equilibrium. How much friction is acting on crate.
Consider neon, a noble gas whose molecules consist of single atoms of atomic mass 0.02 kg/mol. Avogadro's number is 6.02 × 1023 mol-1, what is the average kinetic energy of a neon atom
A tuning fork with a frequency of 440 Hz is held just above the top of a uniform glass tube containing water. What is the speed of sound in air
A student sees a newspaper ad for an apartment that has 1630 square feet (ft2) of floor space. How many square meters of area are there
If the wheel on a car has a diameter of 50 centimeter and the car has a mass of 8.5 kilogram and it rolls down a hill without slipping. evaluate what is the wheel moment of inertia
A 0.275 kg puck, initially at rest on a frictionless horizontal surface, is struck by a 0.220 kg puck that is initially moving along the x axis with a velocity of 2.18 m/s, Determine the velocity of the 0.275 kg puck after the collsion
A ball is thrown off a cliff, 100 meters tall, with an initial velocity of 5.00 m/s, which is purely horizontal direction. How long before the ball hits the ground
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