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A thin, uniform piece of sheet metal in an x,y plane has one side along the x axis from (0, 0) to (3, 0), and a vertical side from (3,0) to (3, 5.4). The remaining side is curved between (0,0) and (3, 5.4) on the line y= .6 x^2.
Find xcm, the x coordinate of the c.m. for a diagram of the object and parameters. Distances are in meters.
A generator has a square coil consisting of 700 turns. The coil rotates at 98 rad/s in a 0.16-Tmagnetic field. The peak output of the generator is 50.00 V. What is the length of one side of the coil?
Two balls are approaching each other head-on. Their velocities are +9.00 and-12.1 m/s. Determine the velocity of the center of mass of the two balls for the following conditions. (Use the sign of your answer toindicate the direction.)
A soccer player kicks the ball toward a goal that is 23.0 m in front of him. Find the speed of the ball when the goalie catches it in front of the net
An open-pit coal mine consumes 96 hectares of land, down to the depth of 26 m, each year. What volume of earth, in cubic kilometres, is removed in this time.
a block of ice at 0 degrees c has a small depression in the top. we place a steel nut of mass 45 grams in this
The amplitude of a lightly damped oscillator decreases by 2.8% during each cycle. What percentage of the mechanical energy of the oscillator is lost in each cycle?
In a crash test, a 1100 kg car slams into a concrete wall at 17.1 m/s and comes to rest in 0.275 s. a)Find out the magnitude of the impulse delivered to the car.b) Find the average stopping force.
During a jump to his partner, an aerialist is to make a triple somersault lasting a time of 1.87 sec. find what must his moment of inertia be during the tuck
Electrons in a photoelectric-effect experiment emerge from a copper surface with a maximum kinetic energy of 1.10 eV . What is the wavelength of the light?
In the figure below a crowbar is used to lift a weight. If a down ward force of 228 N is applied to the end of the bar, how much weight does the other end bear? The crowbar itself has negligible weight. (Let r1 = 29.0 cm and r2 = 4.70 cm.)
Two students on roller skates stand face-to-face, then push each other away. One student has a mass of 99 kg and the second student 68 kg. Find the ratio of the magnitude of the first student's velocity to the magnitude of the second student's veloc..
A container is filled to the brim with 1.6 L of mercury at 20°C. As the temperature of the container and mercury is increased to 49°C, compute the linear expansion coefficient of the material
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