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A sound wave of the form s = sm cos(kx - ωt + Ψ) travels at 345 m/s through air in a long horizontal tube. At one instant, air molecule A at x = 2.01 m is at its maximum positive displacement of 6.00 nm and air molecule B at x = 2.11 m is at a positive displacement of 2.40 nm. All the molecules between A and Bare at intermediate displacements. What is the frequency of the wave?
The electric field at a distance o f0.145m from the surface of a solid insulating sphere with radius 0.355m is 1750 N/C. Calculate the electric field inside the sphere at a distance of 0.200m from the center
A turboprop producing 1000 kW drives a propeller operating at 85% propulsive efficiency. If the fuel flow to the engine is 0.07 kg/s, determine the overall thermal efficiency of the engine.
The drawing shows two boxes resting on frictionless ramps. Onebox is relatively light and sits on a steep ramp. The other box isheavier and rests on a ramp that is less steep. The boxes arereleased from rest at A and allowed to slide down the ramp..
Particle X has a speed of 0.960 c and a momentum of 1.70×10-18 kgm/s. What is the mass of the particle? What is the rest energy of the particle? What is the kinetic energy of the particle?
The initial temperature of 150g of ice is -20 degrees Celsius. How much additional heat is required to heat the water
A SLR digital camera often has pixels measuring 8.00m × 8.00m. How many such pixels does the height of this image cover
on average venus is 0.72 au from the sun and its surface temperature is 735 k. calculate how much of this is due to
a motorcycle rider starts from rest and goes 3.75 rad counterclockwise around a circular track in 12.3 seconds.
A hollow metal sphere has 7cm and 11cm inner and outer radii, respectively. The surface charge density on the inside surface is 200nC/m2. What is the direction and strength of the electric field
Suppose a certain jet plane creates an intensity level of 123 dB at a distance of 5.90 m. What intensity level does it create on the ground directly underneath it when flying at an altitude of 2.01 km
a uniform disk with radius 0.350m and mass 25.5 kg rotates in a horizontal plane on a friction-less vertical axle that
The length of a beam increases by 1.26mm when its temperature is raised from 29.87oC to 71.49 oC. What is the length of the beam at the initial temperature
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