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A converging lens has a focal length of f = 27 cm. An object is placed 37 cm from the lens. Find the size of the image in cm if the object has a height of 7 cm. Express the answer with one decimal place.
A man holds a 190 N ball in his hand, with the forearm horizontal. Find magnitude and direction of the force applied by the upper arm bone to the forearm at the elbow joint
Monochromatic light from a distant source is incident on a slit 0.750 {rm mm} wide. On a screen 2.00 {rm m} away, the distance from the central maximum of the diffraction pattern to the first least amount is measured to be 1.35 {rm mm}.
A girl swings back and forth on a swing with ropes that are 4.00m long. The maximum height she reaches is 1.50m above the ground, What is the girl's maximum speed
A small object of mass 0.0150kg & a charge of 3.1 uC hangs fromthe ceiling by a thread. A second small object, with a charge of4.2 uC, is placed 1.2m vertically below the first charge. Find a) the electric field at the position of the upper charge..
The four tires of an automobile are inflated to a gauge pressure of 2.10E+5 Pa. Each tire has an area of 0.0267 m2 in contact with the ground. Find out the weight of the automobile.
A coin is placed 18.0cm from the axis of a rotating turntable of variable speed. obtain the coefficient of static friction between the coin and the turntable
An unknown material has a normal melting/freezing point of -26.3° C, and the liquid phase has a specific heat capacity of 160 J/(kg · C°). What is the latent heat of fusion of the unknown material
A nail projects 25.0 mm horizontally outward from a wall. A 400 N picture is hung from the end of the nail, what is the diameter of the nail
Usain Bolt is running a 100m dash. He accelerates to top speed over the first 45 m, then runs at a constant speed for the last 55 m, What is his top speed
A proton, an electron, and an alpha particle (of charge +2e) form an equilateral triangle of side length 2.19×10-10 m. What is the electric potential energy of the three-particle system
A simple harmonic oscillator consists of a block of mass 4.kg attached to a spring of spring constant 153 N/m. When t = 2 s, the position and velocity of the block are x = +0.129 m and v = +3.415 m/s.
Assume that the speed of light in a vacuum has the hypothetical value of 7.32 m/s. In a pickup baseball game, who is standing at home plate
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