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The center of gravity of an irregular object of mass 4.70 g is shown in the figure. You need to move the center of gravity 2.10cm to the left by gluing on a tiny 1.00-g mass, which will then be considered as part of the object. Where should you attach this additional mass?
A 1000-kg car is travelling west at 17.0 m/s toward an intersection. What is the angle of their velocity after the collision relative to the east direction
A 57.5 kg skateboarder starts out with a speed of 1.75 m/s. He does +80.0 J of work on himself by pushing with his feet against the ground. How much has the vertical height of the skater changed
A small glass bead has been charged to +30 nC. A tiny ball bearing 3.0 cm above the bead feels a 1.8 × 10?2 N downward electric force. What is the charge on the ball bearing
A microscope has an objective lens of focal length 6.55 mm. The objective forms an image 16.2 cm from the lens. What is the distance between the lenses
A pilot flies an airplane at a constant speed of 520 km/hr in the vertical circle of radius 1400 m. compute the force exerted by the seat on the 105-kg pilot at point A and at point B.
A right triangle has sides of 30, 40 and 50 cm. A charge of -10 x 10-6 C is placed at the right angle; a charge of + 10 x 10-6C at the smaller acute angle and a charge of + 5.0x10-6 C at the larger acute angle
Closed gaussian surfuce in the shape of a cube of edge length 2.00 m, with one corner at x=5.00m, y=4.00m, what is the net charge contained by the cube
A rifle is aimed horizontally at a target 60 away. The bullet hits the target 2.5 below the aim point. What was the bullet's flight time
A heat engine absorbs 2400 J of heat from a hot reservoir and releases 1400 J of heat to a cold reservoir each second. Find the efficiency of the engine and its mechanical power output
Each plate of a parallel-plate air-filled capacitor has an area of 0.0020 m2, What is the surface charge density on the plates
Two electrons, both with speed 1.0x10^4 m/s, are shot into a uniform magnetic field. The first is shot from the origin out along the + x-axis, compute the magnitude and direction of the magnetic field
Jack and Jill are on two different floors of their high rise office building and looking out of their respective windows. What is the height between the two window ledges
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