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A spherical mirror is polished on both sides. When the concave side is used as a mirror, the magnification is +2.3. What is the magnification when the convex side is used as a mirror, the object remaining the same distance from the mirror? If the object is inverted, then enter a negative number. Otherwise, enter a positive number.
A grocery cart is pushed along an aisle by a shopper who exerts a constant horizontal force of . The acceleration of gravity is . If all frictional forces are neglected and the cart starts from rest, illustrate what is the grocery cart’s final s..
A heavy piece of hanging sculpture is suspended by a 146.0 cm long, 8.03 gm wire. When the wind blows hard, wire hums at its fundamental frequency of 113.0 Hz. What is the mass of the sculpture (in kg) assume that the local acceleration due to gravit..
find the coefficient of kinetic friction between the crates and the table.
Vector has a magnitude of 7.20 units and makes an angle of 39.5° counter-clockwise from positive x-axis. Vector has a magnitude of 8.00 units and is directed along the negative x-axis.
A plot of pressure as a function of volume is known as a pV diagram. pV diagrams are often used in analyzing thermodynamic processes. Consider an ideal gas that starts in state O, as indicated in the diagram. Your task is to explain how the gas proce..
Assume that the rod is held at rest horizontally and then released. (Throughout the remainder of this problem, your answer may include the symbol, moment of inertia of the assembly, whether or not you have answered the first part correctly.)
A force of 7 pounds is required to hold a spring stretched 0.5 feet beyond its natural length. How much work (in foot-pounds) is done in stretching the spring from its natural length to 0.9 feet beyond its natural length.
Speedboat A negotiates a curve whose radius is 115 m. Speedboat B negotiates a curve whose radius is 194 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of boats.
A screen is placed 1.30 {rm m} behind a single slit. The central maximum in the resulting diffraction pattern on the screen is 1.70 {rm cm} wide-that is, two first-order diffraction minima are separated by 1.70 {rm cm}.
The speed of the block at the bottom of the track is vA = 13.1 m/s, and block experiences an average frictional force of 7.00 N while sliding up the track.
A singly charged ion (charge q = +1.60e-19 C) completes four revolutions in a uniform magnetic field, Calculate the mass of the ion in kilograms
An air molecule is moving at a speed of 455 m/s. How many meters would the molecule move throughout 7ms (milliseconds) if it didn't collide with any other molecules.
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