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A uniform metal bar is 5.00 m long and has mass 0.300 kg. The bar is pivoted on a narrow support that is 2.00 m from the left-hand end of the bar. What distance x from the left-hand end of the bar should an object with mass 0.400 kg be suspended so the bar is balanced in a horizontal position?
One solenoid is centered inside another. The outer one has a length of 55.0 centimeter and contains 6600 coils, Determine the emf induced in the inner solenoid
The radius of the moon is known to be 1.7 x 106 m. Astronaut who walked on the moon measured the time it takes an object to fall 1 m on the moon is about 1.1 s. Determine the mass of the moon
two balls are approaching each other head-on. their velocities are 9.86 and -11.9 ms. determine the velocity of the
As the fragment falls through the atmosphere, it is heated and some of the material is vaporized. Explain how you could determine the composition of this hot vaporized material from the light it emits.
In a Compton scattering experiment, an electron is accelerated straight ahead in the same direction as that of the incident X-ray photon. Which way does the scattered photon move? Describe your reasoning, using the principle of conservation of moment..
Andy is waiting at the signal. As soon as the light turns green, he accelerates his car at a uniform rate of 8.00 meters/second2. What is the displacement of Andy's car
A bicycle has wheels with a diameter (DIAMETER, not radius) of 0.620 m. Find the linear acceleration of the bicycle
A car moving at 50.0 mph appraoches a turn. IF the maximum coefficients of static friction between the car's tires and the road is 0.450, then please determine the minimum safe radius of the turn
Two 6.0 uC charges are placed on the x-axis at, one at x=0.0 and the other at x=1.0m. Another charge, -3.0uC is also on the x axis, what is the total electric field at position x=0.25m
Watch the video titled "Groundwater Contamination" (4 min 35 sec) under the Water Pollution terms section of the Science Corner. You can also view the video athttps://www.youtube.com/watch?v=5xs1jLlbztE. Next, explain the main reasons why some ground..
A sled is pulled with a horizontal force of 20 N along a level trail, and the acceleration is found to be 0.35 m/s2. An extra mass m = 4.2 kg is placed on the sled. If the same force is just barely able to keep the sled moving, what is the coeffic..
A child starts from rest at the top of a spiral water slide. Suppose the slide is frictionless and the top is 8.5m above the bottom of the slide. The slides make three complete turns, each of radius 3m. What is the child's speed at the bottom of the ..
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