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A 3.1-cm-tall object is 47 cm in front of a converging lens that has a 11.8 cm focal length. Calculate the image position and height.
A 100-kg halfback running north with a speed of 12 m/s is tackled by a 110-kg opponent running south with a speed of 4.0 m/s. If collision is completely inelastic and head-on, compute the speed of the players just after the tackle.
A particular guitar string is supposed to vibrate at 191- Hz, but it is measured to actually vibrate at 210- Hz. By what percent should the tension in string be changed to get the frequency to the correct value.
A slingshot will shoot a 10-g pebble 22.0 mstraight up. How much potential energy is stored in the slingshot's rubber band
The wake of a speedboat is 17â?? in a lake where the speed of the water wave is 2.8km/h. What Is the speed of the boat
A 1.00 uF capacitor is connected in parallel with a 2.00 uF capacitor. The 1.00 uF capacitor carries a charge of +10.0 uC on one plate, Find the equivalent capacitance of the two capacitors
A laser beam is incident on a 600 lines per millimeter diffraction grating. determine angular deflection of the first-order bright fringe
An object 6.0mm high is placed 18cm from a convex mirror of radius of curvature 18cm. Determine the image distance using the mirror equation
A box is dropped from the height of 2000 m. Find the time taken by the box to reach the ground
A single slit has a width of 2.1x10^(-6)m and is used to form the diffraction pattern. Find out the angle that locates the second second dark fringe when the wavelength of the light is 430 nm.
A Carnot engine has an efficiency of 0.361, and the temperature of its cold reservoir is 406 K. (a) Determine the temperature of its hot reservoir. (b) If 5950 J of heat is rejected to the cold reservoir, what amount of heat is put into the engine..
A child goes down a playground slide with an acceleration of 1.20 m/s2. Compute the coefficient of kinetic friction between child and slide if the slide is inclined at an angle of 32.2° below the horizontal.
The muon is an unstable particle, with a mean lifetime of 2.5x10^-10 seconds. What is the minimum uncertainty in this particle's energy
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