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A wire is shaped into a rectangle of dimensions A × B. The wire loop carries a current of I amps. Calculate the magnetic field at the geometric center of the loop.
approximately how long should it take 11.9 kg of ice at 0 degrees c to melt when it is placed in a carefully sealed
A small immersion heated is rated at 350 W. Estimate how long it will take to heat a cup of soup (assuming this is 250 ml of water) from 20 degree C to 60 degree C.
At one instant a bicyclist is 35.0m due east of a park's flagpole, going due south with a speed of 20 m/s. Then, 19 s later, the cyclist is 60.0 m due north of the flagpole, going due east with the speed of 11 m/s. For the cyclist in this 19s inte..
A 4.0 kg mass is hung from a string which is wrapped around a cylindrical pulley (a cylindrical shell), what is the mass of the pulley
cA person pushes a 16-kg lawn mower at constand speed with a force F= 80N directed along the handle, which is at an angle of 45 degrees to the horizontal. Determine the magnitude of the friction force present between the wheels and the grass.
In an electric shaver, the blade moves back and forth over adistance of 2.1 mm in simple harmonic motion, with frequency 118Hz. obtain the magnitude of the maximum blade acceleration
The box has a mass of 31.0 kg, and the coefficient of kinetic friction between the box and floor is 0.530. The acceleration of gravity is 9.81 m/s2. Illustrate what is the acceleration of the box?
During the "heavy bombardment" period of our solar system astroids slammed into earth with large speeds thus resluting in earth becoming warmer. What form did the energy take before it was heat
question a body of mass 60 kg is dragged with just enough force to start moving on a rough surface with coefficients of
A 5.40×10-2- wad of putty is thrown horizontally at the block, hitting it with a speed of 2 and sticking. far does the putty-block system compress spring.
A rocket of mass 4.42 × 105 kg is in flight near earth's surface. Its thrust is directed at an angle of 65.3 ° above the horizontal and has a magnitude of 8.04 × 106 N. determine the direction of the rockets acceleration
A piano tuner sounds two strings simultaneously. One has been previously tuned to vibrate at 292.0 Hz. The tuner hears 2.0 beats per second. By what percentage did the tuner increase the tension on that string
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