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A sound wave from a siren has an intensity of 88.8 W/m2 at a certain point, and a second sound wave from a nearby ambulance has an intensity level 8 dB greater than the siren's sound wave at the same point. What is the intensity level of the sound wave due to the ambulance?
If the current in the solenoid is ramped at a constant rate from zero to Is= 1.20 A over a time interval of 79.0 ms, What is the mutual inductance between the solenoid and the short coil
The Sun radiates energy at a rate of about 4×1026W. At what rate is the Sun's mass decreasing
Given that the goal is to allow all vehicles to come safely to a stop before reaching the intersection, calculate the maximum desired speed limit
A 1.9 mol sample of hydrogen gas is heated at constant pressure from 302 K to 410 K. Calculate the energy transferred to the gas by heat.
A ski jumper takes off at an angle 20 degrees above the horizontal with a speed of 30.0m/s, Calculate the time of flight
For a procedure, the enthalpy change and the entropy change of the system is 173000 J and its entropy change is 210 J/K. compute the free energy change of the system at 298 K.
Two circuits contain an emf produced by a moving metal rod, like that shown. The speed of the rod is the same in each circuit, other than the bulb in circuit 1 has one-half the resistance of the bulb in circuit 2.
find the radius of curvature of the vertical profile of the road at A. Using value of the curvature found, determine the force exerted on a 160-lb driver by the seat of his 3100-lb car as the car, traveling at a constant speed of 50 mi/h, passes t..
A worker pushes horizontally on a large crate with a force of 297 N, and the crate is moved 4.8 m. How much work was done.
A 45.50 cm diameter disk rotates with a steady angular acceleration of 2.00 rad/s2. It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.30° with the positive x-axis at..
Three equal positive charges Q are each fixed at a corner of an equiliateral triangle of side length a, Draw a free body diagram for the negative charge, Find the magnitudes of the net force on the negative charge
The concepts for finding the change in length of a rod.
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