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An object is placed to the left of a convex lens and on the optical axis. The object is 22 cm from the lens and the focal length of the lens is 55 cm. What is the magnification of the image formed by the lens? You do not have to enter units for this problem.
Find out the direction of the train motion
A 1400 wrecking ball hangs from a 20 -long cable. The ball is pulled back until the cable makes an angle of 30.0 with the vertical. By how much has the gravitational potential energy of the ball changed?
A 315 kg sailboat has an acceleration of 0.72 m/s2 at an angle of 33° north of east. compute direction of the net force that acts on the sailboat
A capacitor with air between its plates is charged to 70 V and then disconnected from the battery. What is the dielectric constant of this glass
A bullet with mass m = 5:21 g is moving horizontally with a speed v = 498 m/s when it strikes a block of wood with mass M = 14.8 kg (initially at rest). What was the change in kinetic energy (J) of the bullet
A frictionless pulley has the shape of a uniform solid disk of mass 2.1 and radius 10. A 1.10 stone is attached to a very light wire that is wrapped around rim of pulley and the system is released from rest.
Calculate the resistance of a piece of nichrome wire 2.00 m long. the cross-sectional area of the 20 gauge wire is 0.5176 mm2
A hollow aluminium cylinder is to be fitted over a steel piston. At 22°C the inside diameter of the cylinder is 99.2 percent of the outside diameter of the piston. To what common temperature must the two pieces be heated in order that the cylinder ju..
A string that is fixed at both ends has a length of 1.81 m. When the string vibrates at a frequency of 84.3 Hz, a standing wave with five loops is formed. What is the fundamental frequency of the string
A concentration difference of a certain solute of 1.0 Ã- 10â€"2 kg/m3 is maintained between the ends of a tube with a length of 3.5 m and a cross-sectional area of 0.25 m2. What is the diffusion constant for the solute
In what time interval does it reach this velocity. How high would the insect jump if air resistance were negligible.
Calculate the speed of an electron after it accelerates from rest through a potential difference of 160 .
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