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A 8.74-kg hanging weight m2 is connected by a string over a pulley to a 5.00-kg block m1 that is sliding on a flat table. If the coefficient of kinetic friction is 0.190, find the tension in the string.
Suppose we hang a heavy ball with a mass m = 17 kg (so the weight is mg) from a steel wire 2.5 m long that is 2 mm in diameter (radius = 1e-3 m). Calculate the stretch L of the steel wire
An astronaut has two objects that are identical in all respects,except that one is painted black and the other is painted silver. Initially, they are at the same temperature.
when the bungee jumper is reaching the end of his cord he begins to slow. while slowing down the direction of his
a singly ionized helium atom he has only one electron in orbit about the nuclues. what is the radius of the ion when it
The company's basis in the inventory is $5,000. Explain how large a deduction is it allowed for this charitable contribution?
Water flows over Victoria Falls, which is 128 m high, at an average rate of 1.20 times 106 kg/s. If two thirds the potential energy of this water were converted to electric energy, how much power would be produced by these falls?
An ant travels in a perfectly straight line in the –x direction some distance. It turns, and then travels some new displacement, 30.0O above the +x axis, again, in a straight line, for some distance. The final leg of its little ant journey is a displ..
We wish to coat a flat slab of glass (n = 1.50) with a transparent material (n = 1.25) and illuminate with light of wavelength 600 nm (in vacuum). For what minimum thickness of the coating will the light be (a) reflected back to the observer and (b) ..
A strip of copper 3.0 cm wide carries a current I = 28.5 A to the right, What is the direction of the average magnetic force on the conduction electrons
A microscope slide is placed in front of a converging lens with a focal length of 2.18 cm. The lens forms an image of the slide 10.3 cm from the slide. How far is the lens from the slide if the image is real
Take element Z = 69 from the periodic table. Ionize it 68 times so that there is only one electron left orbiting around the nucleus. What is the ground state energy of the electron
A 40.0 kg wagon is towed up a hill inclined at 17.3° with respect to the horizontal. How fast is the wagon going after moving 80 m up the hill
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