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Part A - Moment due to a force specified by magnitude and endpoints
As shown, a member is fixed at the origin, point O, and has an applied force F, the tension in the rope, applied at the free end, point B. (Figure 1) The force has magnitude F = 130 N and is directed as shown. The dimensions are x1 = 0.450 m, x2 = 1.90 m, y1 = 2.20 m, and z1 = 1.10 m. What is the moment about the origin due to the applied force F?Express the individual components of the Cartesian vector to three significant figures, separated by commas.
What is the relationship between the speed distribution of a gas and the mass of the particles? How does this help to explain the relative ease with which hydrogen escapes from its containers
A 62.5 kg person holding two 0.800 kg bricks stands on a 2.15 kgskateboard. What is the final speed of the person and theskateboard relative to the ground
The sound intensity of 1.4x10-12 J/m2s is the threshold of hearing for humans. What is the amplitude of the motion of the air molecules if the speed of sound in the air is 331 m/s and the density of air is 1.2 kg/m3?
Compare the kinetic energy of car travelling. Compare the kinetic energy of an 900 kg car travelling at 30 m/s, and a 1,800 kg car at the same speed.
An electron has an initial velocity of (15.0 j + 22.0 k) km/s and the constant acceleration of (3.00*10^12 m/s^22)i in a region in which uniform electric and magnetic fields are present. If B = (400 µT)i, find the electric field E.
A convex spherical mirror, whose focal length has a magnitude of 20.6 cm, is to form an image 13.0 cm behind the mirror. What is the magnification of the mirror
a golfer imparts a speed of 37.1 ms to a ball and it travels the maximum possible distance before landing on the green.
A proton and an electron are each placed at rest in a uniform electric field of magnitude 484 N/C. Compute the speed of each particle 48.8 ns after being released. Electron m/s proton m/s
If you weigh 680 on the earth, what would you weigh when at surface of a neutron star that has the same mass as our sun and a diameter of 20km.
the speed of sound in air is 331 ms. during the next thunderstorm try to estimate your distance from a lightning bolt
Our solar system is about 1.34 parsecs away from planet A. An astronaut is moving away from earth toward planet A at 0.80c as measured in the earth's reference frame. What frequency of light is observed by the earthlings
A soccer ball is kicked with an initial speed of 28 m/s at an angle of 22° with respect to the horizontal. Find the maximum height reached by the ball
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