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Q. What horizontal force P must a worker exert on the rope to position the 50 kg. crate directed over the trailer?
Q. A heavy piece of hanging sculpture is suspended by a 90 cm-long, 5.0 g steel wire. When the wind blows hard, the wire hums at its fundamental frequency of 80 Hz. what is the mass of the sculpture?
A slide projector needs to create a 96 cm-high image of a 2.20 cm-tall slide. How far should you place the lens from the slide.
W hat is the velocity of the gasoline in the tube
What is the magnitude of the maximum torque. What is the utmost load for this crane at an angle of 15° with the horizontal.
What is the acceleration of the truck. If it starts 4.50 m from the lower edge of the roof, how fast would the toolbox be moving just as it reaches the edge of the roof if the kinetic friction force on it is 18.0 N.
What mass (in grams) of steam at 100°C should be mixed with 212 g of ice at its melting point, in a thermally insulated container, to produce liquid water at 14.0°C? The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg..
A 3000 pound car crashes into a concrete jersey barrier moving 3 sections (totaling 12,000 pounds) laterally 24 inches. How fast was the car going on impact.
An object with a net charge of 22 µC is placed in a uniform electric field of 600 N/C, directed vertically. What is the mass of object if it floats in this electric field.
A 54 {rm kg} ice skater spins about a vertical axis through her body with her arms horizontally outstretched, making 2.5 turns each second. The distance from one hand to other is 1.5 {rm m}. Biometric measurements indicate that each hand typically..
An archer pulls her bow string back 0.40m by exerting a force that increases uniformly from zero to 25 N. How much work does the archer do in pulling back the bow.
An object with a net charge of 44 µC is placed in a uniform electric ?eld of 554 N/C, directed vertically. The acceleration of gravity is 9.81 m/s^2. What is the mass of this object if it ?oats in this electric ?eld?
what is the electrostatic force that acts on this charge. What would be the least speed required for the rest of the trip to arrive in time for the interview.
Compute the ground state energy and wavefunction
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