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An object is placed 13 cm in front of a concave mirror whose focal length is 23 cm. The object is 2.7 cm tall. Determine (a) the location of the image, taking a real image as a positive value and a virtual image as a negative value. (b) Determine the height of the image, where an upright image will have a positive height and an inverted image will have a negative height.
A rocket of mass 4.5 x10^5 kg is in flight. Its thrust is directed at an angle of 53° above the horizontal and has a magnitude of 6.80 x10^6 N. Find out the magnitude and direction of the rockets acceleration. Give the direction as an angle above ..
Water is forced out of a fire extinguisher by air pressure, as shown in Figure P9.64 where h = 0.495 m. How much gauge air pressure in the tank
suppose the sun collapsed into being a neutron star of radius 12.0 km, without losing any mass. calculate the ratio of the escape velocity from the surface
A small object of mass 2.90 g and charge -17 µC "floats" in a uniform electric field. What is the magnitude and direction of the electric field
A cyclist is pedaling at a cadence of 60, so the bicycle wheel make 60 rotations per minute around the axis through its center. What is the wheel's angular speed
Two negative point charges are separated by 16 and feel a mutual repulsive force of 1.55. The charge of one is three times that of other.
an oil-filled capacitor has square parallel plates 23 cm on a side separated by 0.48 mm. when the capacitor is charged
a airplane flies directly away from you. if you perceive its engine sound at 82 of the emitted frequency the planes
During the final stages of descent, asky diver with an openparachute approaches the ground with a constant velocity. what forces are seponsible for thee quilibrium
Small rockets are used to make small adjustments in the speed of satellites. One such rocket has a thrust of 53 N. If it is fired to change the velocity of a(n) 66000 kg space craft by 99 cm/s, how long should it be fired? Answer in units of s.
You have landed on an unknown planet, Newtonia, and want to know what objects will weigh there. You find that when a certain tool is pushed on a frictionless horizontal surface by a 12.6 force, What would it weigh on earth
A box of mass 5.8 kg is accelerated from rest by the force across a floor at a rate of 2.0 m/s2 for 8.2 s. Find the net work done on the box.
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