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A square loop with 80 tight turns and sides 15 cm is made with copper wire of diameter 1.2 mm. If a magnetic field perpendicular to the loop is changing a rate of 7 mT/s, determine the current induced in the loop:
A baseball has a mass of 140 grams and a softball has a mass of 280 grams. In which of the situations would they both have the same momentum.By how much will a bar long of the same material.
The head of a hammer with a mass of 1.5kg is allowed to fall onto a nail from a height of 0.70m, What is the maximum amount of work it could do on the nail
In a television tube, electrons travel down the tube and strike the fluorescent material at the end of the tube. Their impact with this material causes light to be emitted, How long does the acceleration take
A piece of lead [c = 128 J/(kg·C°)] is heated from 18.0 °C to 40.1 °C. The same amount of heat is added to a piece of copper [c = 387 J/(kg·C°)]. find the final temperature Tf of the copper
The temperature of a black body is increased by 10.5 percents. By how many percents did the wavelength of the peak change
On a frictionless horizontal surface below, a 1.5 kg mass traveling at 2.5 m/s collides with and sticks to a 3 kg mass that is initally at rest, What will be the max compression of the spring
The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base.
Two masses, m1= 3.32 kg and m2= 5.00 kg are on a horizontal frictionless surface and they are connected together with a rope, What is the acceleration of the whole system, when this maximum force is appiled
A very hot piece of iron with mass 1.5kg and initial temperature 755 degrees celcius is placed into a tank of water with total water mass 3.0kg, what is the final equilibrium temperature for the iron and water
A loudspeaker diaphragm is oscillating in simple harmonic motion with a frequency of 950 Hz and a maximum displacement of 0.65 mm. What is the magnitude of the maximum acceleration
Starting from rest, you pull the string with a constant force F = 8 N along a nearly frictionless surface. At the instant while the center of the disk has moved a distance x = 0.12 m, a length d = 0.27 m of string has unwound off the disk.
A charge of 3.0 uC(micro C) and a second charge are initially far apart. find the magnitude of the unknown charge
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